User's Manual

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Operating environment

• Avoid damp environments. Avoid magnetic elds. Using the device in these environments may

result in circuit malfunctions.

• Do not use your device during thunderstorms to protect your device against any danger caused

by lightning.

• Ideal operating temperatures are 0°C to +35°C. Ideal storage temperatures are -20°C to +60°C.

Extreme heat or cold may damage your device or accessories.

• Do not expose your device to direct sunlight (such as on a car dashboard) for prolonged periods.

• Keep the device away from sources of heat and re, such as a heater, microwave oven, stove,

water heater, radiator, or candle.

• Stop using your device or applications for a while if the device is overheated. If skin is exposed

to an overheated device for an extended period, low temperature burn symptoms, such as red

spots and darker pigmentation, may occur.

• Do not place sharp metal objects, such as pins, near the microphone, earpiece, or speaker. The

earpiece may attract these objects and result in injury.

• Do not allow children or pets to bite or suck the device or accessories. Doing so may result in

damage or explosion.

Water and dust proof

• Your device has survived a test environment underwater at a depth of 1-meter at temperatures

of 15°C to +35°C under pressures of 86 kPa to 106 kPa for 30 consecutive minutes, and was

approved as compliant with the IP67 requirements of IEC60529. Do not drop your device into

waters over 1 meter deep or leave it submerged for more than 30 minutes.

• Use a damp tissue or cloth to clean your device. Make sure there is no residual water left before

using your device again. Leftover water drops may condense and damage your device.

• Do not place your device in any liquid chemicals.

• To ensure the best audio performance of your device's speaker, use a cloth to wipe the area of

the speaker or microphone which has been exposed to water. Do not use the speaker until the

wet areas are totally dry.

Child's safety

• Comply with all precautions with regard to child's safety. Letting children play with the device