Multiple FunctionsThis digital alarm clock with two alarms can set two separate alarms, and supports 12/24 hour show and / temperature display. Especially our alarm clock with 1-59 minutes timer countdown function is suitable for time-limited daily activities, especially cooking in the kitchen. USB / Battery Powered This alarm clock can be powered by a USB cable or 3 AAA batteries are operated. The alarm clock goes into sleep mode when the battery is used for power supply. If you want the screen to stay on, we recommend using a USB port for power (the plug is NOT included). Smart Screen Wake UpWhen the alarm clock is in sleep mode , the screen display can be awakened by sound, shock and tap. Multiple Placement WaysOur alarm clock features an extendable hidden stand and a magnet on the back. It can be placed directly on a flat surface, also can pull the stand to place, or use the back magnet to attach it to a magnetic/metallic surface such as a refrigerator. Compact design with large ScreenThis small cube alarm clock with compact design3.3"x3.3"x1"takes up little space, perfect for home, office and travel. Large LED display makes it easy to read the time, day and night. Product Descriptions Alarm Clock Specifications Material: ABS, PS, Magnet. Size: 82.6*82.6*25.6 mm (3.3" x 3.3" x 1") Battery: 3 AAA batteries.(Battery not included) Power consumption: DC5V=500mA Rated Power: 0.4W. Color: Green. Include Package. 1 * Alarm Clock. 1 * USB Cable (Plug is NOT in Package Included) 1 * User Manual.