Aubig Triangle Led Alarm Clock Displaying Time Date Temperature Sound Control Three Alarm Time Settings-Green Light Voice control;Digital display: Time/Temperature;Power source:3x AA batteries or USB three groups alarm time, Convenient to control Don't interfere with your sweet sleep,because display brightness automatically reduced by half from 6:00pm to 7:00am Fashion decoration on the head of a bed, a bookcase Package included: 1x LED Clock, 1x USB Charging Cable, 1x Instruction