MMdex Digital Rotating Alarm Clock with Timer/Time / Calendar and Temperature Display in 4 Angle,Battery Operated Travel Clock with Nightlight (Black) 4 modes: Timer, Time, Date and Temperature, modes will change when turn over it 90 degree horizontally Easy to read: (3.2 * 2.9 inch) Large LCD screen display and big digits Light-activated sensor: white backlight turns on automatically when at night or enough dark Adjustable alarm: Set volume louder or lower as you need, the alarm will last 1 minute every moring. Used for bedside / desk / office, also ideal as a timer when cooking, yoga and so on. Attention: This mode without snooze function and the alarm only last for 1 minute, The volume of alarm adjustable, for individual preference.Powered with batteries(not included)