Loud Alarm Clock for Heavy Sleepers, Vibrating Alarm Clock with Wireless Bed Shaker for Hearing Impaired Deaf, Dual Alarm Clock with 3 USB Ports, 2 AC Outlet, 5.2-Inch Display, Dimmer, Snooze, DST
- ... alarm clock gives you 9 Extra minutes sleep.
- 【Battery Backup Setting】This digital alarm clock just support outlet power only, 3 AAA batteries (not included) just be used to back-up your time and memory preservation so that you don't need to reset time after encountering power outage. Under the power outage, the light source of the electronic clock will not light up.