Analog Alarm Clock, 4 inch Super Silent Non Ticking Small Clock with Night Light, Battery Operated, Simply Design, for Bedroon, Bedside, Desk, (Green) JALL 12498 ratings ...

When choosing the best alarm clock for heavy sleepers, ... With its 113db extra-loud alarm, adjustable tone and volume control, ... The Sonic Bomb is not battery-powered, ...

This clock has three volume settings: 70, ... In those cases, a battery-powered alarm may be best. However, if you have space, you may not mind an alarm that plugs into the wall.

【Alarm Clock Battery Operated】This basic alarm clock is powered by 3 xAAA batteries only (not included), which can keep Constantly Big 4.5'' LED digit time display for more than 12 months.