Sonic Boom Vibrating Radio Alarm Clock with AM/FM Radio & Powerful Super Vibrating Unit, Features Snooze, Extra Loud Pulsating Audio Alarm and Battery Backup Sonic Alert AM/FM Radio Vibrating Alarm Clock Vibrating Unit Powerful 12V bed shaker with Extra 113dB loud pulsating audio alarm 1.8" bright green LED large display, Adjustable tone and volume Snooze button, hi/low dimmer switch, Battery backup (9V battery not included) Ideal for deep sleepers, Deaf or hard of hearing users, seniors or college dorms