The Super Shaker Alarm Clock and Telephone Signaler features a built-in Telephone Signaler - never miss another call. 113 db extra-loud alarm (with adjustable tone and volume control) and Super Shaker bed vibrating unit make sure you're awake. Built-in flashing alert lights come with a hi/ low dimmer switch. Dual alarms to accommodate multiple sleepers and schedules. 9V battery backup maintains time and alarm setting in the event of power failure (battery not included). New green power technology now uses 60-percent less energy and still has a 5-level dimmer function. Number of Batteries: One (1) Input Voltage: 120 V AC Battery Type: 9-volt Color: Silver
