戴在右耳上,打开开关,当您瞌睡时,头部低下20度左右的时候,就会发出蜂鸣,确保您的行车安全。
Sleepy reminder: Wear the ear, turn on the switch, when you want to sleep, put head to lower 20 degrees and it will shake to ensure your driving safety.
戴在右耳上,打开开关,当您瞌睡时,头部低下20度左右的时候,就会发出蜂鸣,确保您的行车安全。
Sleepy reminder: Wear the ear, turn on the switch, when you want to sleep, put head to lower 20 degrees and it will shake to ensure your driving safety.
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