Sonic Alert Sonic Shaker Portable Alarm Clock: * 90 db Extra-loud alarm * Sonic Shaker bed-vibrating unit * Pop-up display with convenience light * Manually lighted display up to 50 percent longer battery life * Test button to test batteries, vibrator and sound operation * Easy-to-set function keys * Easy-to-read 0.75" display * Continuous 4-minute snooze setting * Swivel and flush mounted display protects settings * 1-year warranty * Model# SBP100