Super Convenient Snooze Button:The big snooze button,make it no need to open your eyes to turn on the snooze function,easily get a nap,you can set 5~60 minutes. Dual USB Charging & Memory Battery:2 USB charging ports can simultaneously charge two devices. Backup Memory battery(included) can stores time in case of power failure. Tips: This clock can only be used when powered by USB powered. Manual and Auto Adjustable Brightness:We have three kinds of brightness so that can provide a dark brightness at night without affecting sleep.Or you can choose to automatically adjust the brightness, so that the brightness will automatically dim at night. Large Display & Modern Design: 6.5 inches large LED screen with large numbers make it very easy to read the time.The sleek design make it good room decor for you. Easy Operation:There is only 3 buttons ,which help you set the time,alarm clock,lightness,which makes it easy to operate. So you don't to be puzzled at many buttons.