Small Square Luminous Silent LED Alarm Clock Multifunctional Digital Clock with Light Modern Design This digital clock is a stylish office desktop decoration, ideal for home, kitchen, bedroom, study and other indoor spaces. Functions: Multifunction: time, date, room temperature and snooze function Humanized Design: easy to use, activated by sound or touch Natural Decoration: special shape and texture, ideal for home, bedroom, reading and bedside use Time and Temperature Display Format: 12/24 Hours; Celsius/Fahrenheit 2 Display Modes Optional: DP-1/DP-22 Power Supply: Battery/USB Cable Technical Index Power Supply: 4 x AAA Batteries or USB Cable LED Display Color: White Working Voltage: 3.0V-4.5V Input Voltage: DC 5V Size: 80*80*27mm Package Included: 1 x Digital Clock 1 x USB Cable