Built-in 600mAh lithium batteryThe alarm clock has a 600mA battery with a USB charger that can be used for 1-2 months in one cable. You don't have to worry about charging every week to buy batteries. 7-Color Backlight: The alarm clock features a beautiful one-key activated backlight. Check the time in the dark without turning on the light. Soft light creates a fantastic atmosphere as a night lamp. Upgraded MaterialThis clock is made of premium plastic, you can enjoy peace of mind while kids are using it. The old version LED display is very difficult to see the left and right angel screen numbers. We updated the quality and high-tech glass, now you can see the alarm clock on each angel Beautiful lookingThe alarm clock is designed to be round and comfortable. It will look great on your bedside table or desk and adds a fabulous splash of color to your home. Ideal GiftMulti-function alarm clock wakes you up with soft lighting and crisp sounds. Great Christmas gift choice for your family or friends.