Easy Operation and Reliable: - There is 3 buttons to set the time, alarm clock,light,which is easy to set.As is known,the simpler it is,the more reliable. Adjustable Brightness: - The 3 level brightness all make you see the time clearly,and the darkest light(L0) is dim enough for you to sleep at a dark envoironment,We take into account the various requires of different people about light and try not to interfere with anyone's sleep.The light is adjusted manual or auto. Large Display&Bedroom Decor: - Big large screen can ensure that you see the time clearly across the room.The sleek and modern design also works for a great clock for office but also a good room decoration ,suitable for women and girls to makeup. Big Snooze Function: - The big snooze button single on the top,make you don't have to think and won't press it wrong,which is very helpful.You can set the snooze time 5~60min based on your needs. Dual USB Charging and Memory Function: - Equipped with 2 usb charging ports,you can charge your phone,pad and other devices.The backup memory battery(included) can stores time when power faliure.Tips:The clock is powered by USB,the battery is just for memory time and alarm.