This Super Shaker 12V Bed Vibrator is placed under a pillow. The powerful vibrations are guaranteed to wake up extremely heavy sleepers. A built-in temperature sensor protects the unit against overheating. The "White" Super Shaker SS12V Bed Vibrator is designed to be plugged into the vibrator outlet on the back of the NEW Sonic Boom clock. The "Black" Super Shaker can be plugged into the Vibralarm, Wake Assure or any other alarm clock which has a 12V male input jack. It can also be used with the ClearSounds 40XLC Amplified Phone.
Note: If you need the Super Shaker for the older model (Black) Sonic Boom, then you must order it in "Black".