HearingWarning: When you use the headset, your ability to hear outside sounds may be affected. Do not use the headset whereit can endanger your safety.Some wireless devices may interfere with some hearing aids.Protect your device from harmful contentYour device may be exposed to viruses and other harmful content. Take the following precautions:• Be cautious when opening messages. They may contain malicious software or otherwise be harmful to your device orcomputer.• Be cautious when accepting connectivity requests, browsing the internet, or downloading content.• Only install and use services and software from sources that you trust and that offer adequate security and protection.• Install antivirus and other security software on your device and any connected computer. Only use one antivirus app at atime. Using more may affect performance and operation of the device and/or computer.• If you access preinstalled bookmarks and links to third party internet sites, take the appropriate precautions. MicrosoftMobile does not endorse or assume liability for such sites.VehiclesRadio signals may affect improperly installed or inadequately shielded electronic systems in vehicles. For more info, check withthe manufacturer of your vehicle or its equipment.Only qualified personnel should install the device in a vehicle. Faulty installation may be dangerous and invalidate your warranty.Check regularly that all wireless device equipment in your vehicle is mounted and operating properly. Do not store or carryflammable or explosive materials in the same compartment as the device, its parts, or accessories. Do not place your device oraccessories in the air bag deployment area.Potentially explosive environmentsSwitch your device off in potentially explosive environments, such as near petrol pumps. Sparks may cause an explosion or fireresulting in injury or death. Note restrictions in areas with fuel; chemical plants; or where blasting operations are in progress.Areas with a potentially explosive environment may not be clearly marked. These usually are areas where you are advised toswitch your engine off, below deck on boats, chemical transfer or storage facilities, and where the air contains chemicals orparticles. Check with the manufacturers of vehicles using liquefied petroleum gas (such as propane or butane) if this device canbe safely used in their vicinity.Certification information (SAR)This mobile device meets guidelines for exposure to radio waves.For information on SAR, see the printed user guide, or go to sar.microsoft.com.Original accessoriesFor availability of approved accessories, check with your dealer.An extensive range of accessories is available for your device. For more details, see www.microsoft.com/mobile/accessories.Practical rules about accessories• Keep all accessories out of the reach of small children.• When you disconnect the power cord of any accessory, hold and pull the plug, not the cord.• Check regularly that accessories installed in a vehicle are mounted and are operating properly.• Installation of any complex car accessories must be made by qualified personnel only.BatteryType: BL-5CB© 2015 Microsoft Mobile. All rights reserved. 16