Avoid accidents with the D_rive Alert Master. The D_rive Alert will help keep you awake until you arrive safely at your destination. Drive Alert's ergonomic design is comfortable, easy to use and operates on low battery consumption. Just turn it on, adjust
the wake-up angle switch and place it behind your ear. When you begin to doze off and your head slumps forward, the Drive Alert will emit a LOUD BEEP to wake you up. Measures: 2" x 1" x 0.3" Weight: 0.11 lbs