1、ADJUSTABLE DESIGN: Digital alarm clock supports 180 degree rotation adjustment, and the projection function can be used on the ceiling or wall. 2、ADJUSTABLE BRIGHTNESS: Projection alarm clock has two display modes with brightness adjustable design, you can operate it as you need. 3、DIGITAL DISPLAY: Projection digital alarm clock has a large LED screen display with large font, very easy to read display time, practical and stylish. 4、MULTIFUNCTION: LED alarm clock is not only a calendar and thermometer, but also can be used as an alarm clock with snooze function. 5、USB CHARGING: LED projection alarm clock has a USB port, you can charge it with a USB cable, perfect for office, desk or bedroom. Item Type: Projection Alarm Clock Product Material: ABS Battery Type: Button Cell (Shipped with Built in Battery) Battery Type: CR2032 Battery Capacity: 240mAh Size: Approx. 176x51x86mm / 6.9x2.0x3.4in 1 x Projection Alarm Clock 1 x USB Cable 1 x Instruction Manual