GT-C3520 Safety precautions Warning: Prevent electric shock, fire, and explosion Do not use damaged power cords or plugs, or loose electrical sockets Mobile Phone user manual Do not touch the power cord with wet hands, or disconnect the charger by pulling on the cord Do not bend or damage the power cord Do not use your device while charging or touch your device with wet hands Do not short-circuit the charger or the battery Do not drop or cause an impact to the charger or the battery • Some of the contents in this manual may differ from your phone depending on the software of the phone or your service provider. • Third party services may be terminated or interrupted at any time, and Samsung makes no representation or warranty that any content or service will remain available for any period of time. • This product includes certain free/open source software. The exact terms of the licenses, disclaimers, acknowledgements and notices are available on the Samsung's website opensource.samsung.com. www.samsung.com Printed in Korea GH68-35696A English (EU). 09/2011. Rev. 1.0 • Use your device to call for help. Dial a local emergency number in the case of fire, traffic accident, or medical emergencies. • Use your device to help others in emergencies. If you see an auto accident, a crime in progress, or a serious emergency where lives are in danger, call a local emergency number. • Call roadside assistance or a special, non-emergency assistance number when necessary. If you see a broken-down vehicle posing no serious hazard, a broken traffic signal, a minor traffic accident where no one appears injured, or a vehicle you know to be stolen, call roadside assistance or another special, nonemergency number. Proper care and use of your mobile device Keep your device dry • Humidity and all types of liquids may damage device parts or electronic circuits. • Do not turn on your device if it is wet. If your device is already on, turn it off and remove the battery immediately (if the device will not turn off or you cannot remove the battery, leave it as-is). Then, dry the device with a towel and take it to a service centre. • Liquids will change the colour of the label that indicates water damage inside the device. Water damage to your device can void your manufacturer’s warranty. Do not use or store your device in dusty, dirty areas Dust can cause your device to malfunction. Do not store your device on slopes If your device falls, it can be damaged. Do not store your device in hot or cold areas. Use your device at -20 °C to 50 °C • Your device can explode if left inside a closed vehicle, as the inside temperature can reach up to 80 °C. • Do not expose your device to direct sunlight for extended periods of time (such as on the dashboard of a car). • Store the battery at 0 °C to 40 °C. Allow only qualified personnel to service your device Allowing unqualified personnel to service your device may result in damage to your device and will void your manufacturer’s warranty. Handle SIM cards or memory cards with care • Do not remove a card while the device is transferring or accessing information, as this could result in loss of data and/or damage to the card or device. • Protect cards from strong shocks, static electricity, and electrical noise from other devices. • Do not touch gold-coloured contacts or terminals with your fingers or metal objects. If dirty, wipe the card with a soft cloth. Ensure access to emergency services Emergency calls from your device may not be possible in some areas or circumstances. Before travelling in remote or undeveloped areas, plan an alternate method of contacting emergency services personnel. Keep your personal and important data safe • While using your device, be sure to back up important data. Samsung is not responsible for data loss. • When disposing of your device, back up all data and then reset your device to prevent misuse of your personal information. Do not distribute copyright-protected material Do not distribute copyright-protected material that you have recorded to others without the permission of the content owners. Doing this may violate copyright laws. The manufacturer is not liable for any legal issues caused by the user’s illegal use of copyrighted material. Do not charge the battery with chargers that are not approved by the manufacturer Do not use your device during a thunderstorm Your device may malfunction and your risk of electric shock is increased. Do not handle a damaged or leaking Lithium Ion (Li-Ion) battery For safe disposal of your Li-Ion batteries, contact your nearest authorised service centre. Handle and dispose of batteries and chargers with care • Use only Samsung-approved batteries and chargers specifically designed for your device. Incompatible batteries and chargers can cause serious injuries or damage to your device. • Never dispose of batteries or devices in a fire. Follow all local regulations when disposing of used batteries or devices. Do not store your device with such metal objects as coins, keys and necklaces • Your device may become deformed or malfunction. • If the battery terminals are in contact with metal objects, it may cause a fire. Do not store your device near magnetic fields • Your device may malfunction or the battery may discharge from exposure to magnetic fields. • Magnetic stripe cards, including credit cards, phone cards, passbooks, and boarding passes, may be damaged by magnetic fields. • Do not use carrying cases or accessories with magnetic closures or allow your device to come in contact with magnetic fields for extended periods of time. Do not store your device near or in heaters, microwaves, hot cooking equipment, or high pressure containers • The battery may leak. • Your device may overheat and cause a fire. Do not drop your device or cause impacts to your device • The screen of your device may be damaged. • If bent or deformed, your device may be damaged or parts may malfunction. If your device has a camera flash or light, do not use a flash close to the eyes of people or pets Using a flash close to the eyes may cause temporary loss of vision or damage to the eyes. Use caution when exposed to flashing lights • While using your device, leave some lights on in the room and do not hold the screen too close to your eyes. • Seizures or blackouts can occur when you are exposed to flashing lights while watching videos or playing Flash-based games for extended periods. If you feel any discomfort, stop using the device immediately. Specific Absorption Rate (SAR) certification information Your device conforms to European Union (EU) standards that limit human exposure to radio frequency (RF) energy emitted by radio and telecommunications equipment. These standards prevent the sale of mobile devices that exceed a maximum exposure level (known as the Specific Absorption Rate, or SAR) of 2.0 W/kg. During testing, the maximum SAR recorded for this model was 0.355 W/kg. In normal use, the actual SAR is likely to be much lower, as the device has been designed to emit only the RF energy necessary to transmit a signal to the nearest base station. By automatically emitting lower levels when possible, your device reduces your overall exposure to RF energy. The Declaration of Conformity statement at the back of this manual demonstrates your device’s compliance with the European Radio & Terminal Telecommunications Equipment (R&TTE) directive. For more information about the SAR and related EU standards, visit the Samsung website. Correct disposal of this product (Waste Electrical & Electronic Equipment) (Applicable in the European Union and other European countries with separate collection systems) This marking on the product, accessories or literature indicates that the product and its electronic accessories (e.g. charger, headset, USB cable) should not be disposed of with other household waste at the end of their working life. To prevent possible harm to the environment or human health from uncontrolled waste disposal, please separate these items from other types of waste and recycle them responsibly to promote the sustainable reuse of material resources. To prevent injury to yourself and others or damage to your device, read all of the following information before using your device. • Never place batteries or devices on or in heating devices, such as microwave ovens, stoves, or radiators. Batteries may explode when overheated. • Never crush or puncture the battery. Avoid exposing the battery to high external pressure, which can lead to an internal short circuit and overheating. Protect the device, batteries, and chargers from damage • Avoid exposing your device and batteries to very cold or very hot temperatures. • Extreme temperatures can cause the deformation of the device and reduce the charging capacity and life of your device and batteries. • Prevent batteries from contacting metal objects, as this can create a connection between the + and – terminals of your batteries and lead to temporary or permanent battery damage. • Never use a damaged charger or battery. Caution: Follow all safety warnings and regulations when using your device in restricted areas Turn off your device where prohibited Comply with all regulations that restrict the use of a mobile device in a particular area. Do not use your device near other electronic devices Most electronic devices use radio frequency signals. Your device may interfere with other electronic devices. Do not use your device near a pacemaker • Avoid using your device within a 15 cm range of a pacemaker if possible, as your device can interfere with the pacemaker. • If you must use your device, keep at least 15 cm away from the pacemaker. Reduce the risk of repetitive motion injuries When you repetitively perform actions, such as pressing keys, drawing characters on a touch screen with your fingers, or playing games, you may experience occasional discomfort in your hands, neck, shoulders, or other parts of your body. When using your device for extended periods, hold the device with a relaxed grip, press the keys lightly, and take frequent breaks. If you continue to have discomfort during or after such use, stop use and see a physician. Ensure maximum battery and charger life • Avoid charging batteries for more than a week, as overcharging may shorten battery life. • Over time, unused batteries will discharge and must be recharged before use. • Disconnect chargers from power sources when not in use. • Use batteries only for their intended purposes. Use manufacturer-approved batteries, chargers, accessories and supplies • Using generic batteries or chargers may shorten the life of your device or cause the device to malfunction. • Samsung cannot be responsible for the user’s safety when using accessories or supplies that are not approved by Samsung. Do not bite or suck on the device or the battery • Doing so may damage the device or cause explosion. • If children use the device, make sure that they use the device properly. When speaking on the device: • Hold the device upright, as you would with a traditional phone. • Speak directly into the mouthpiece. • To minimise the possible interference with a pacemaker, use your device on the opposite side of your body from the pacemaker. Do not use your device in a hospital or near medical equipment that can be interfered with by radio frequency If you personally use any medical equipment, contact the manufacturer of the equipment to ensure the safety of your equipment from radio frequency. If you are using a hearing aid, contact the manufacturer for information about radio interference Some hearing aids may be interfered with by the radio frequency of your device. Contact the manufacturer to ensure the safety of your hearing aid. Turn off the device in potentially explosive environments • Turn off your device in potentially explosive environments instead of removing the battery. • Always comply with regulations, instructions and signs in potentially explosive environments. • Do not use your device at refuelling points (service stations), near fuels or chemicals, and at blasting areas. • Do not store or carry flammable liquids, gases, or explosive materials in the same compartment as the device, its parts, or accessories. Turn off your device when in an aircraft Using your device in an aircraft is illegal. Your device may interfere with the electronic navigation instruments of the aircraft. Electronic devices in a motor vehicle may malfunction due to the radio frequency of your device Electronic devices in your car may malfunction due to radio frequency of your device. Contact the manufacturer for more information. • Avoid contact with your device’s internal antenna. Touching the antenna may reduce the call quality or cause the device to transmit more radio frequency than necessary. Internal antenna Protect your hearing and ears when using a headset • Excessive exposure to loud sounds can cause hearing damage. • Exposure to loud sounds while driving may distract your attention and cause an accident. • Always turn the volume down before plugging the earphones into an audio source and use only the minimum volume setting necessary to hear your conversation or music. • In dry environments, static electricity can build up in the headset. Avoid using headsets in dry environments or touch a metal object to discharge static electricity before connecting a headset to the device. Use caution when using the device while walking or moving Always be aware of your surroundings to avoid injury to yourself or others. Do not disassemble, modify, or repair your device • Any changes or modifications to your device can void your manufacturer’s warranty. For service, take your device to a Samsung Service Centre. • Do not disassemble or puncture the battery, as this can cause explosion or fire. When cleaning your device: • Wipe your device or charger with a towel or a rubber. • Clean the terminals of the battery with a cotton ball or a towel. • Do not use chemicals or detergents. Do not use the device if the screen is cracked or broken Broken glass or acrylic could cause injury to your hands and face. Take the device to a Samsung Service Centre to have it repaired. Do not use the device for anything other than its intended use Avoid disturbing others when using the device in public Do not allow children to use your device Your device is not a toy. Do not allow children to play with it as they could hurt themselves and others, damage the device, or make calls that increase your charges. Install mobile devices and equipment with caution • Ensure that any mobile devices or related equipment installed in your vehicle are securely mounted. • Avoid placing your device and accessories near or in an air bag deployment area. Improperly installed wireless equipment can cause serious injury when air bags inflate rapidly. Phone layout 1 4-way navigation key In ldle mode, access userdefined menus; In Menu mode, scroll through menu options Depending on your service provider, pre-defined menus may differ Correct disposal of batteries in this product (Applicable in the European Union and other European countries with separate battery return systems) This marking on the battery, manual or packaging indicates that the batteries in this product should not be disposed of with other household waste at the end of their working life. Where marked, the chemical symbols Hg, Cd or Pb indicate that the battery contains mercury, cadmium or lead above the reference levels in EC Directive 2006/66. If batteries are not properly disposed of, these substances can cause harm to human health or the environment. To protect natural resources and to promote material reuse, please separate batteries from other types of waste and recycle them through your local, free battery return system. While driving, safely operating the vehicle is your first responsibility. Never use your mobile device while driving, if it is prohibited by law. For your safety and the safety of others, practice good common sense and remember the following tips: • Use a hands-free device. • Get to know your device and its convenience features, such as speed dial and redial. These features help you reduce the time needed to place or receive calls on your mobile device. • Position your device within easy reach. Be able to access your wireless device without removing your eyes from the road. If you receive an incoming call at an inconvenient time, let your voice mail answer it for you. • Let the person you are speaking with know you are driving. Suspend calls in heavy traffic or hazardous weather conditions. Rain, sleet, snow, ice, and heavy traffic can be hazardous. • Do not take notes or look up phone numbers. Jotting down a “to do” list or flipping through your address book takes attention away from your primary responsibility of driving safely. • Dial sensibly and assess the traffic. Place calls when you are not moving or before pulling into traffic. Try to plan calls when your car will be stationary. If you need to make a call, dial only a few numbers, check the road and your mirrors, then continue. • Do not engage in stressful or emotional conversations that may be distracting. Make people you are talking with aware you are driving and suspend conversations that have the potential to divert your attention from the road. Do not paint or put stickers on your device Paint and stickers can clog moving parts and prevent proper operation. If you are allergic to paint or metal parts of the product, you may experience itching, eczema, or swelling of the skin. When this happens, stop using the product and consult your physician. Do not carry your device in your back pockets or around your waist You can be injured or damage the device if you fall. Household users should contact either the retailer where they purchased this product, or their local government office, for details of where and how they can take these items for environmentally safe recycling. Business users should contact their supplier and check the terms and conditions of the purchase contract. This product and its electronic accessories should not be mixed with other commercial wastes for disposal. This EEE is compliant with RoHS. Comply with all safety warnings and regulations regarding mobile device usage while operating a vehicle 2 1 2 3 4 5 Dial Key Make or answer a call; In Idle mode, retrieve recently dialled, missed, or received numbers; 3 6 7 Voice mail service key In Idle mode, access voice mails (press and hold) 4 Alpha numeric keys 8 5 Softkeys Perform actions indicated at the bottom of the display 6 Power/End key Turn the phone on and off (press and hold); End a call; In Menu mode, cancel input and return to Idle mode 7 Confirm key In Idle mode, access Menu mode; Launch the web browser (press and hold); In Menu mode, select the highlighted menu option or confirm an input Depending on your service provider or region, the key may perform differently 8 Silent profile key In ldle mode, activate or deactivate the silent profile (press and hold) Your phone displays the following status indicators on the top of the screen: Icon Description FM radio suspended Signal strength Music playback in progress Network searching Music playback paused GPRS network connected New text message (SMS) EDGE network connected Back cover SIM Card 2. Insert the battery and replace the back cover. New multimedia message (MMS) Call in progress Browsing the web Battery New email message Connecting to secured web page New configuration message Roaming (outside of normal service area) New push message New voice mail message Call diverting activated 1. Plug a travel adapter into the multifunction jack. Bluetooth activated 2. When charging is finished, unplug the travel adapter. Battery power level 10:00 Current time Note: notes, usage tips, or additional information Followed by: the order of options or menus you must select to perform a step; for example: In Menu mode, select Messages → Create message (represents Messages, followed by Create message) → [ ] Your phone accepts microSD™ or microSDHC™ memory cards up to 16 GB (depending on memory card manufacturer and type). Square brackets: phone keys; for example: [ ] (represents the Power/End key) < > Angled brackets: softkeys that control different functions at each screen; for example: <OK> (represents the OK softkey) • Formatting the memory card on a PC may cause incompatibility with your phone. Format the memory card only on the phone. • Frequent writing and erasing of data will shorten the life span of memory cards. 1. Remove the back cover. 2. Insert a memory card with the gold-coloured contacts facing up. Silent profile activated Alarm activated Instructional icons Insert a memory card (optional) Charge the battery Normal profile activated No SIM card FM radio on •Do not remove the battery from the phone before unplugging the travel adapter first. Otherwise, the phone may be damaged. •To save energy, unplug the travel adapter when not in use. The travel adapter does not have a power switch, so you must unplug the travel adapter from the outlet to interrupt the power supply. The travel adapter should remain close to the socket when in use. Icon Description No signal Memory card inserted Install the SIM card and battery 1. Remove the back cover and insert the SIM card. Change your ringtone 1. Press and hold [ ]. 2. Enter your PIN and press <Confirm> (if necessary). If the battery remains fully discharged or removed from the device, the time and date will be reset. Memory card 1. In Idle mode, press [ ] to display a list of recent numbers. 2. Scroll left or right to select a call type. 3. Scroll up or down to select a number or name. 4. Press the Confirm key to view details of the call or [ ] to dial the number. 1. In Menu mode, select Settings → Sound profiles. 2. Scroll to the profile you are using. Adjust the volume To adjust the volume of the ringtone 1. In Menu mode, select Settings → Sound profiles. 2. Scroll to the profile you are using. If you are using the silent profile, you are not allowed to adjust the volume of the ringtone. 3. Press <Edit> → Volume. 4. Scroll to Call alert. 5. Scroll left or right to adjust the volume level and press <Save>. To adjust the volume of voice during a call While a call is in progress, press the Navigation key up or down to adjust the volume. In noisy environments, you may have difficulty hearing the calls while using the speakerphone feature. For better audio performance, use the normal phone mode. Activate the mobile tracker When someone inserts a new SIM card in your phone, the mobile tracker feature will automatically send the contact number to two recipients to help you locate and recover your phone. To activate the mobile tracker, 1. In Menu mode, select Settings → Security → Mobile tracker. 2. Enter your password and press <OK>. The first time you access Mobile tracker, you will be prompted to create and confirm a password. 3. Press the Confirm key to turn on the mobile tracker feature. 4. Scroll down and press the Confirm key to open the recipient list. 5. Press <Search> → <Add> to select a recipient in your contact list. You can also enter phone numbers including a country code (with +) in the recipient list. Skip to step 7. 6. When you are finished selecting contacts, press <Save>. 7. Scroll down and enter the sender’s name. 8. Press the Confirm key → <Accept>. If you are using the silent profile, you are not allowed to change the ringtone. 3. Press <Edit> → Voice call ringtone. 4. Select a memory location (if necessary). 5. Select a ringtone. To switch to another profile, select it from the list. Use the smart home screen The smart home screen allows you to access your favourite applications and contacts and view upcoming events or tasks. You can customise the smart home screen to fit your preferences and needs. When you are using the smart home screen, the Navigation key does not work as shortcuts. To add items to the smart home screen You can change the idle screen to another style. In Menu mode, select Settings → Display → Smart home and scroll left or right to a style you want. To access the smart home items Press the Navigation key to scroll through the items on the smart home screen and press the Confirm key to select an item. Number mode Press an appropriate alphanumeric key to enter a number. Symbol mode Press an appropriate alphanumeric key to enter a symbol. • To move the cursor, press the Navigation key. • To delete characters one by one, press <Clear>. To delete all of the characters, press and hold <Clear>. • To insert a space between characters, press . • To change the line, press  three times. • To enter punctuation marks, press . Add a new contact The memory location to save new contacts may be preset depending on your service provider. To change the memory location, in Menu mode, select Contacts → <Options> → Settings → Save new contacts to → a memory location. T9 mode 1. In Menu mode, select Settings → Display → Smart home and scroll left or right to a smart home screen. 2. Press <Edit>. 3. Select the items to display on the smart home screen. For the shortcuts toolbar, you can add or delete the shortcuts as desired. Press <Options> → Edit shortcuts. 4. Press <Options> → Save. 5. Press the Confirm key. 1. Press the appropriate alphanumeric keys to enter an entire word. 2. When the word displays correctly, press  to insert a space. If the correct word does not display, press the Navigation key up or down to select an alternate word. Press an appropriate alphanumeric key until the character you want appears on the display. 1. In Idle mode, enter a phone number and press <Options>. 2. Select Add to Contacts → Create contact → a memory location (if necessary). 3. Select a number type (if necessary). 4. Enter contact information. 5. Press the Confirm key or press <Options> → Save to add the contact to memory. Use the camera Listen to music Listen to the FM radio 1. In Menu mode, select Music. 2. Select a music category → a music file. 3. Control playback using the following keys: 1. 2. 3. 4. To capture photos 1. In Menu mode, select Camera to turn on the camera. 2. Rotate the phone anti-clockwise to landscape view. 3. Aim the lens at the subject and make any adjustments. 4. Press the Confirm key to take a photo. The photo is saved automatically. To view photos In Menu mode, select My files → Images → a photo file. To capture videos 1. In Menu mode, select Camera to turn on the camera. 2. Rotate the phone anti-clockwise to landscape view. 3. Press  to switch to the camcorder. Aim the lens at the subject and make any adjustments. 4. Press the Confirm key to start recording. 5. Press the Confirm key or <Stop> to stop recording. The video is saved automatically. To view videos In Menu mode, select My files → Videos → a video file. Key Function Confirm Pause or resume playback •Left: Skip backward; Scan backward in a file (press and hold) Navigation •Right: Skip forward; Scan forward in a file (press and hold) •Up/Down: Adjust the volume 1 Activate the 5.1 channel surround sound system when a headset is plugged. 2 Select a sound effect 3 Activate or deactivate Shuffle mode 4 Change the repeat mode 2. Use the Navigation key to scroll to a menu or option. 3. Press <Select> or the Confirm key to confirm the highlighted option. 4. Press <Back> to move up one level; Press [ ] to return to Idle mode. • When you access a menu requiring the PIN2, you must enter the PIN2 supplied by the SIM card. For details, contact your service provider. • Samsung is not responsible for any loss of passwords or private information or other damages caused by illegal software. Make a call 1. In Idle mode, enter an area code and a phone number. 2. Press [ ] to dial the number. 3. To end the call, press [ ]. 1. When a call comes in, press [ 2. To end the call, press [ ]. To change the text input mode ABC mode You may need to press the Confirm key to access Menu mode depending on your region or service provider. Answer a call Enter text • Press and hold [ ] to switch between T9 and ABC modes. Depending on your country, you may be able to access an input mode for your specific language. • Press [ ] to change case or switch to Number mode. • Press [ ] to switch to Symbol mode. • Press and hold [ ] to select an input mode or change the input language. 1. In Idle mode, press <Menu> to access Menu mode. To turn your phone on, 3. Push the memory card in the memory card slot until it locks in place. 4. Replace the back cover. Call a recently dialled number To access your phone’s menus, Turn your phone on or off To turn your phone off, repeat step 1 above. To AC power outlet Access menus Plug a headset into the phone. In Menu mode, select Apps → FM radio. Press the Confirm key to start the FM radio. Press <Yes> to start automatic tuning. The radio scans and saves available stations automatically. The first time you turn on the FM radio, you will be prompted to start automatic tuning. 5. Control the FM radio using the following keys: Key Function Confirm Turn the FM radio on or off Navigation •Left/Right: Fine-tune the frequency; Search for an available radio station (press and hold) •Up/Down: Adjust the volume ]. Send and view messages To send a text message or multimedia message 1. In Menu mode, select Messages → Create message. 2. Enter a recipient number and scroll down. 3. Enter the message text. See “Enter text.” For sending as a text message, skip to step 5. For attaching multimedia, continue with step 4. 4. Press <Options> → Add multimedia and add an item. 5. Press the Confirm key to send the message. To view a text or multimedia messages 1. In Menu mode, select Messages → Inbox. 2. Select a text or multimedia message. Make fake calls You can simulate an incoming call when you want to get out of meetings or unwanted conversations. To activate the fake call feature In Menu mode, select Settings → Call → Fake call → Fake call hot key → On. To make a fake call In Idle mode, press and hold the Navigation key down. Declaration of Conformity (R&TTE) We, Samsung Electronics declare under our sole responsibility that the product GSM Mobile Phone : GT-C3520 to which this declaration relates, is in conformity with the following standards and/or other normative documents. SAFETY EN 60950-1 : 2006+A11:2009 SAR EN 50360 : 2001 / AC 2006 EN 62209-1 : 2006 EMC EN 301 489-01 V1.8.1 (04-2008) EN 301 489-07 V1.3.1 (11-2005) EN 301 489-17 V2.1.1 (05-2009) RADIO EN 301 511 V9.0.2 (03-2003) EN 300 328 V1.7.1 (10-2006) We hereby declare that [all essential radio test suites have been carried out and that] the above named product is in conformity to all the essential requirements of Directive 1999/5/EC. The conformity assessment procedure referred to in Article 10 and detailed in Annex[IV] of Directive 1999/5/EC has been followed with the involvement of the following Notified Body(ies): BABT, Forsyth House, Churchfield Road, Walton-on-Thames, Surrey, KT12 2TD, UK* Identification mark: 0168 The technical documentation kept at : Samsung Electronics QA Lab. which will be made available upon request. (Representative in the EU) Samsung Electronics Euro QA Lab. Blackbushe Business Park, Saxony Way, Yateley, Hampshire, GU46 6GG, UK* 2011.09.06 (place and date of issue) Joong-Hoon Choi / Lab Manager (name and signature of authorised person) *It is not the address of Samsung Service Centre. For the address or the phone number of Samsung Service Centre, see the warranty card or contact the retailer where you purchased your product.
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