Material: Acrylic Size: 6.2(L) x 3.81(W) x 0.9(H) inches Print: Single-sided printFeatures:1.Voice Mode: It has voice display light function which could use sound to make the display light about 10 seconds. The battery life can reach 95 days under the voice mode.2.Built-in 1000MA Lithium Battery: With this battery, the theoretical number of battery charge and discharge cycles can reach 1000 times to give you a more durable experience and avoid the trouble of replacing disposable batteries. 3.Extra USB Power Supply Interface: Very useful and convenient, you can use it to charge your mobile phone while the clock being plugged into an electric power supply.4.Temperature Detection Function: This product has a built-in temperature detection function that can display the ambient temperature in real time.5.THREE groups of alarm. It can set 3 groups of alarm. The alarm time has one minute.You can choose open or close any alarm. Please note 12H display mode or 24H display mode.Multi-functions:1.It is a alarm clock2.It can decorate your space such as your bedroom, study room, living room and office, etc. Attention: you could not shut down the clock when you open sound control function. You should close the voice control function as first.Easy to use and easy to setPackage Includes:1X LED Clock1X USB Cable1X User Manual1X Support Bracket