Built-in backup battery to save your charging clock settings in case of power failure. The digital clock can operate with voice control, and when the clock detects a sound over 90 dB, the LED display lights up. The digital alarm clock display can also be illuminated by pressing any button. If you want the display to be always on, you can keep the clock connected to the power supply at all times. The volume can also be adjusted. With the snooze function, you can simply press the Snooze/Light button to get an additional 5 minutes of snooze time, and this can be cycled until you press any other button. The brightness of the LED clock can be manually adjusted to 4 levels and automatically dimmed from 10 PM to 6 AM. The modern design fits any decor, and the clock does not take up too much space. You can place it in your office, bedroom, living room to decorate your room. Power failure memory function, four levels of brightness adjustment. Time display, voice control function, alarm function, memory function, temperature display, music ringtone, snooze function, 12/24 hour switching. 13 ringtones, touch + voice control function. Color: black Material: ABS Size: 145 x 65 x 32 mm Package contents: 1 x alarm clock 1 x data cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.