Anti Sleep Alarm with Vibrate Alert (Drivers, Security Guards)

Manufacturer Specifications – Main Function: Anti Sleep Alarm – Alarm mode: Vibration – Dimensions: 75 x 22 x 15mm – Angle of Protection: 15~ 30 – Battery: Replaceable button cell battery – Life Time: 30,000 nods Product Notes – There is no vibration when the driver keeps normal driving status with eyes looking forward – Ergonomic Design and comfortable feeling rubber – Lightweight and fits comfortably behind either ear – Easy way to stay awake - no need for caffeine or pharmaceuticals