ITEM NAME:Safe Car Driver Device Keep Awake Sleep Reminder Zapper Alarm Drowsy A M6F8 Description: 100% brand new and high quality Put it behind your right ear, when your head nods forward, an electronic position sensor will sounds a loud alarm to instantly wake you and your passengers Especially suitable for long-distance driving or night driving ON/OFF switch Easy to use and comfortable to wear for a long time Powerful alarm beep Battery inside Color: Black Quantity: 1pc Explain: When you are driving, or learning, especially driving a long-distance bus, please use the driver's ear bell to prevent drowsiness. The use method is to turn the drowsiness ear bell switch to the "on" position and it on your ear. Once the drowsiness strikes you, you can't help falling asleep and bowing your head. At this time, the ear bell will send out a clear "tick" to cheer you up, so as to avoid accidents. Instructions Put the alarm on the right ear; Turn on the switch again; First, check whether the alarm is set normally. When the posture of the alarm is not correct, it will emit a "beep" sound; Avoid high temperature and humidity storage. Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1*Black Sleep Device.Once the drowsiness strikes you, you can't help falling asleep and bowing your head. Put it behind your right ear, when your head nods forward, an electronic position sensor will sounds a loud alarm to instantly wake you and your passengers.