Dkdas Steel Twin Bell Alarm Clock with Night Led Light Trouble waking up? No Problem! Alarm starts loud driving you to get up right away out of the bed. Super loud alarm stays in crazy bell till the ON/OFF switch is turned off. Perfect for waking the dead, heavy sleepers, hard of hearing, hearing impaired and loss. Manual-light illuminated dial glows evenly across the entire dial for night time viewing, soft, energy-saving. Quiet sweep movement offers a second hand that moves in a continuous motion around the dial with NO TICKING, doesn't tick for restless sleepers. Operates on one AA battery (NOT INCLUDED), Ease of use. Simple and functional. Button for backlight: hold the light button, time will be clearly visible at night.