Feature 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. 2Low noise design: Silent alarm clock, never disturb your sleeping. 3Dual Power Supply: Powered by USB cable or 4 pcs AAA batteries (not included). 4Multifunctional alarm clock: With alarm clock, thermometer and FM radio function. 5This desktop digital alarm clock suits for home & office. Features: 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_ Low noise design: Silent alarm clock, never disturb your sleeping. _x000D_ Dual Power Supply: Powered by USB cable or 4 pcs AAA batteries (not included). _x000D_ Multifunctional alarm clock: With alarm clock, thermometer and FM radio function. _x000D_ This desktop digital alarm clock suits for home & office. _x000D_ Specification: Material: Bamboo Color: As picture _x000D_ Power supply: 4*AAA batteryNot included) / USB 5V(Included) _x000D_ Size: 15.6*10*4.9cm / 6.14*3.94*1.93inch(Approx.) Package list: 1 * Digital Alarm Clock _x000D_ 1 * USB cable _x000D_ 1 * User Manual _x000D_ Notice: 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.