This Super Shaker Bed Vibrator is placed under a pillow or between a mattress and box springs. The powerful vibrations are guaranteed to wake up extremely heavy sleepers. A built-in temperature sensor protects the unit against overheating. The Super Shaker SS 12V Bed Vibrator is designed to be plugged into the vibrator outlet on the back of the Sonic BoomTM Alarm Clock. 2-year warranty
