nap zapper,nap alarm,driver alert

nap zapper,nap alarm,driver alert helps driver stay awake to avoid dangerous no mercury,easy change battery 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 Weight: 15g Size: Length: 70mm Width: 60mm 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