· The Nap zapper is the guardian angel for drivers

· This product can protect you and your passengers from accidents due to drowsiness

· The Nap zapper is worn over the ear and has an electronic position sensor

· When your head nods forward, it sounds a loud alarm/vibration to instantly awake you and alert your passengers

· This is ideal for students burning the candle at both ends, or for drivers on long stretches of boring road that you know too well

· Also security guards, machine operators, or even those watching telly and wanting to maintain correct

· N.W: 20g

· Size: Length:78mm Width: 50mm Thickness: 15mm

· Colors: black and blue

· Power: LR14 (1.5V x 3) battery

· Remark: with 9 pieces batteries totally, while 6 pieces of batteries attached in additionally

· Alarm angle: 15 to 30 degrees(adjustable)

· Rating for the voice pressure: 1cm away from the voice hole >85DB

· Patent: applied for design registration (E0610158E)

· Certification: CE