23• If a power cord or power supply becomes damaged in any way, stop using it immediately. • Unplug your device during lightning storms or when unused for long periods of time.• For devices with an AC power cord that connects to the power supply, always connect the power cord according to the following instructions:1 the AC power cord into the power supply until it seats fully.2 the other end of the AC power cord into the wall outlet. Warning: Battery safetyThis device contains a built-in battery, improper use of which may result in explosion. Do not heat, open, puncture, mutilate, or dispose of the product in ire. Do not leave the device in direct sunlight for an extended period of time, which could cause melting or battery damage. The battery in this device is not user replaceable and should only be replaced by Microsoft or a Microsoft Authorized Service Provider. See www.microsoft.com/surface/support for additional details. Warning: Use near WaterTo reduce the risk of ire or shock, do not use this device near water and do not expose it to rain or moisture. Do not attempt to dry device with a hair dryer or a microwave oven. Warning: Hearing safetySet the volume loud enough to hear clearly in quiet surroundings, and no louder.Do not increase the volume after you start listening. Your ears can adapt over time so that high volume sounds normal, but the high volume may still damage your hearing.• Do not increase the volume to block out outside noise. The combination of outside noise and sound from your headphones can damage your hearing. Sealed or noise-canceling headphones can reduce outside noise so that you don’t have to turn up the volume.If you can’t understand someone nearby speaking normally, turn down the volume. Sound that drowns out normal speech can damage your hearing. Even with sealed or noise-canceling headphones, you should be able to hear nearby people speak.Minimize your Time Listening to Loud soundThe more time you spend exposed to loud sound, the more likely you are to damage your hearing. The louder the sound, the less time it takes to damage hearing.• Minimize your time listening to loud sound. At maximum volume, listening to music on he device with headphones can permanently damage your hearing in 15 minutes.• Even lower volumes can damage hearing if you are exposed for many hours.• All of the sound that you are exposed to during a day adds up. If you are exposed to other loud sound, it takes less time listening at high volumes to cause hearing damage.• To safely use the device with no time limit, keep the volume low enough that you can carry on a conversation with people nearby.Be aware of Hearing Loss symptomsStop using this device and have your hearing checked if you experience:• Any hearing loss.• You hear ringing in your ears.• Your speech sounds mufled.• Sound seems dull or lat.It is a good idea to have your hearing checked regularly by an audiologist. For more information, see www.microsoft.com/surface/support Warning: Be aware of your surroundingsIn order to reduce the potential risk of injury due to distractions while using this device, be careful and attentive while driving, riding a bicycle, or walking. Use of the device alone or with headphones (even if used only in one ear) while driving a vehicle or riding a bicycle is not recommended and is illegal in some areas. Check and obey the laws and regulations on the use of mobile devices in the areas where you drive or ride. Using a mobile device while driving or riding may be distracting. Give full attention to driving or riding and to the road. Always keep the volume low enough to hear people talking and sounds that might indicate danger, like ire alarms.sUrface WindoWs 8 Pro and WindoWs rTcLeaning & Usage insTrUcTionsAlways handle your device with care to maintain its appearance. To clean, wipe the outer surface with a soft, lint-free cloth. This symbol identiies safety and health messages in this Device Guide Warning: read safety & Health info Read this guide for important safety and health information and the terms of the Limited Warranty that apply to the Microsoft® device that you have purchased. Keep all printed guides for future reference. Failure to follow instructions and properly set up, use, and care for this product can increase the risk of serious injury or death, or damage to the device or devices. For an online version of this guide go to: www.microsoft.com/surface/support Warning: do not attempt repairsDo not attempt to take apart, open, service, or modify the product, accessories, or power supply. Doing so could present the risk of electric shock or other hazard. Any evidence of any attempt to open and/or modify this device, including any peeling, puncturing, or removal of any of the labels, will void the Limited Warranty. Warning: ac adapter safetyFailure to take the following precautions can result in serious injury or death from electric shock or ire or in damage to the device. To select an appropriate power source for your device:• Use only the power supply unit and AC power cord that came with your device or that you received from an authorized Microsoft retailer.• Do not use non-standard power sources, such as generators or inverters, even if the voltage and frequency appear acceptable. Only use AC power provided by a standard wall outlet.• Do not overload your wall outlet, extension cord, power strip, or other electrical receptacle. Conirm that they are rated to handle the total current (in amps [A]) drawn by the device (indicated on the power supply unit) and any other devices that are on the same circuit.• On devices where the AC prongs may be folded for storage, before plugging the AC adapter into a power outlet, make sure its prongs are fully extended.• On devices where the AC prongs are removable and where the power supply uses a universal adapter, before plugging the AC adapter into a power outlet, make sure the prong assembly is of the proper coniguration for the power outlet and fully seated into the adapter. caution: cable and cord safetyArrange all cables and cords so that people and pets are not likely to trip over or accidentally pull on them as they move around or walk through the area. Do not allow children to play with cables and cords.To avoid damaging the power cords and power supply:• Protect the power cords from being walked on.• Protect cords from being pinched or sharply bent, particularly where they connect to the power outlet, the power supply unit, and the device.• Do not jerk, knot, sharply bend, or otherwise abuse the power cords.• Do not expose the power cords to sources of heat.• Keep children and pets away from the power cords. Do not allow them to bite or chew on them.• When disconnecting the power cords, pull on the plug—do not pull on the cord.