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Do not use the product in dusty, humid, dirty environments, or within strong magnetic fields, which
may cause the internal circuits of the device to fail. When installing this product, please keep
away from appliances with strong magnetic or electric fields, such as microwave ovens and
refrigerators.
Do not use this product during thunderstorms. Thunderstorms may cause equipment failure or
danger of electric shock.
The use of this product in environments such as gas stations, fuel depots, chemical plants,
transportation or storage facilities for fuel or chemical samples is strictly prohibited, and
may cause explosion or fire.
Use this product within the temperature range of 0°C-45°C, and store the product and its
accessories within the temperature range of -40°C to +70°C.
An ambient temperature that is too high or too low may cause product failure. Do not place
the product in direct sunlight, such as a car dashboard or window sill.
Do not place this product near heat sources or exposed fire sources, such as electric heaters,
microwave ovens, water heaters, ovens, stoves, candles, or other places where high
temperatures may occur.
Do not place sharp metal objects, such as pins, near the receiver or speaker of the device, as
metal objects may attach to the headset and injure you.
Operating environment