Product Description
"Clock is powered by 3 AAA batteries (not included) or DC 5V/500mA. Do not show time when power is off, but it is still timing normally. Displays time and temperature C/F display of thermometer. Alarm function, three alarms. The gentle LED lights will display in the smooth wood surface, even at night you can clearly see the time. Two modes for your choice--Voice-control mode and Always-bright mode. Voice-control mode is recommended when it s powered by batteries. "