Jianxiu New Wood Wooden Digital Alarm Clock Desktop Thermometer Date USB Black Material: Wooden frame with fine grain Crescendo alarm with Snooze function, the alarm signal is repeated every five minutes Intelligent blue backlight, built-in sensor to turn on/off the backlight automatically Powered by AAA bateries (not included) / DC input is available Size:10cm X 6cm X 3.7cm (LxWxH) Color: White LED in Black color coat