Huawei TalkBand B1 Quick Start Manual page 217

cold. These environments may
interfere with proper function and
may lead to fire or explosion.
Avoid collision, which may lead to

device malfunctions, overheating,
fire, or explosion.
Before you clean or maintain the

device, stop using it, stop all
applications, and disconnect all
cables connected to it.
Do not use any chemical detergent,

powder, or other chemical agents
(such as alcohol and benzene) to
clean the device or accessories.
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