Features * Great for hotels, motels, and sleep-overs * Go to sleep with the confidence you'll be awakened * 12-volt bed shaker and 113 db volume * Battery back-up * 1- year warranty

Sonic Boom Alarm Clock. A cost effective travel and bedside alarm clock, with a large easy to read display and bed shaker, complete with a hi/low dimmer switch to sleep better at night. Packaged with the newest most powerful 12-volt bed shaker. Complete with a loud 113db adjustable tone and volume control. Numbers are 1/2" tall. The battery backup maintains proper time in the event of a power outage. Requires 9-volt battery, not included. Covered by a 1-year manufacturer's warranty.