Health and Safety Information 165Extreme heat or coldAvoid temperatures below 0°C / 32°F or above 45°C / 113°F.MicrowavesDo not try to dry your mobile device in a microwave oven.Doing so may cause a fire or explosion.Dust and dirtDo not expose your mobile device to dust, dirt, or sand.Cleaning solutionsDo not use harsh chemicals, cleaning solvents, or strongdetergents to clean the mobile device. Wipe it with a softcloth slightly dampened in a mild soap-and-water solution.Shock or vibrationDo not drop, knock, or shake the mobile device. Roughhandling can break internal circuit boards.PaintDo not paint the mobile device. Paint can clog the device’smoving parts or ventilation openings and prevent properoperation.Responsible ListeningCaution! Avoid potential hearing loss.Damage to hearing occurs when a person is exposed to loudsounds over time. The risk of hearing loss increases as sound isplayed louder and for longer durations. Prolonged exposure toloud sounds (including music) is the most common cause ofpreventable hearing loss. Some scientific research suggests thatusing portable audio devices, such as portable music players andcell phones, at high volume settings for long durations may leadto permanent noise-induced hearing loss.This includes the use of headphones (including headsets,earbuds, and Bluetooth® or other wireless devices). Exposure tovery loud sound has also been associated in some studies withtinnitus (a ringing in the ear), hypersensitivity to sound, anddistorted hearing. Individual susceptibility to noise-inducedhearing loss and potential hearing problem varies. Additionally,the amount of sound produced by a portable audio device variesdepending on the nature of the sound, the device settings, andthe headphones that are used. As a result, there is no singlevolume setting that is appropriate for everyone or for everycombination of sound, settings, and equipment.You should follow some common sense recommendations whenusing any portable audio device:• Always turn the volume down before plugging the earphones into anaudio source.