Square Small Alarm Clock Luminous Mute LED Multifunctional Digital Clock Light fashion design Digital clock is a stylish office desk decoration suitable for home, kitchen, bedroom, study and other indoor places. feature: Multifunction: time, date, room temperature and alarm clock function. Humanized design: easy to use, can be awakened by sound or touch. Natural decoration: special shape and texture, very suitable for home, bedroom, reading and bedside table. Format for displaying time and temperature: 12 hours/24 hours; Celsius/Fahrenheit 2 optional display modes: DP-1 / DP-2 2 Power supply: battery / USB cable Technical index Power supply: 4 AAA batteries or USB cable LED display color: white Working voltage: 3.0V-4.5V Input voltage: DC 5V Size: 80x80x27mm Package includes 1 x digital clock 1 x USB cable