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防瞌睡提醒器是21世纪驾驶员的必备品。该“瞌睡报警器”以纽扣电池作为电源,挂在耳朵上使用。当挂者瞌睡低头时,报警器就会发出“嘀嘀”的呜叫声
Sleepiness reminder is a must-have for 21st-century drivers. The “drowsiness alarm ” to the button battery as a power source, hanging in the ears to use. When hung up drowsy, the alarm will be issued “beep ” woke up