Features:_x000D_ _x000D_ Support 12 or 24 Hours Display: This digital alarm clock support 12 or 24 Hours selectable time display format, you can choose the time display format you want. _x000D_ Sound control backlight function: You can turn on the backlight by pressing the LIGHT key or clapping your hands or patting the desk and the backlight will last for about five seconds for easy reading(Within 1 meter) _x000D_ Alarm clock and snooze function: You can preset the time to wake you up. _x000D_ _x000D_ Dual Power Supply: Powered by USB cable or 4 pcs AAA batteries (not included). _x000D_ Multifunctional display: Displays time, temperature(/ switchable) and humidity at the same time. _x000D_ _x000D_ This desktop digital alarm clock suits for home & office._x000D_ _x000D_ _x000D_ Specification:_x000D_ Material: ABS _x000D_ _x000D_ Color: As picture _x000D_ Power supply: 2*AAA batteryNot included) _x000D_ _x000D_ Temperature measuring range: 0-5032-122) _x000D_ Calendar: 2000-2099_x000D_ _x000D_ Size: 9.6*9.6*4cm / 3.78*3.78*1.57inch(Approx.)_x000D_ _x000D_ Package list:_x000D_ _x000D_ 1 * Digital Alarm Clock(Battery not included) _x000D_ 1 * User Manual _x000D_ _x000D_ Notice:_x000D_ _x000D_ Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. _x000D_ Please understand that colors may exist chromatic aberration as the different placement of pictures. 1Support 12 or 24 Hours Display:This digital alarm clock support 12 or 24 Hours selectable time display format, you can choose the time display format you want. 2Sound control backlight function: You can turn on the backlight by pressing the LIGHT key or clapping your hands or patting the desk and the backlight will last for about five seconds for easy reading(Within 1 meter) 3Alarm clock and snooze function: You can preset the time to wake you up. 4Dual Power Supply: Powered by USB cable or 4 pcs AAA batteries (not included). 5Multifunctional display: Displays time, temperature(/ switchable) and humidity at the same time.