This Super Shaker Bed Vibrator is placed between a mattress and box spring (causing the coils within the bed/box spring to rattle) or under a pillow. With powerful vibrations, this bed shaker is guaranteed to wake up extremely heavy sleepers and hard of hearing users. Includes a built-in temperature sensor to protect the unit from overheating. This 12 volt bed vibrator is designed to be plugged into the vibrator outlet on the back of the Sonic Boom Alarm Clock.
Includes two year warranty.