Never oversleep again with the Sonic Boom Loud Vibrating Alarm Clock. Unlike the traditional wake up call, this combination device contains numerous features that guarantee you will always arise on time. The Sonic Alert SB1000ss gives you the option to choose from bed vibrations, a pulsating audio alarm, or flashing light notifications. The large glowing LED digital clock remains visible regardless of the time of day. Want to add more to your Sonic Boom gadget? You can always connect to a lamp or use the built-in receiver to combine additional Sonic Alert signalers.