Sonic Boom dual alarm clock. Guaranteed to wake even the deepest sleeper, also ideal for the hard of hearing and elderly. Two alarm settings. Adjustable volume and tone. Hi/low dimmer control. Battery back-up (9V battery not included). Powerful bed shaker included. Large 1.8" brightgreen LED display. Extra loud pulsating audio alarm. 1 Year manufacturer"s warranty. Silver. SASBD375SS.