DreamSky Digital Alarm Clocks for Bedrooms Wooden Desk Clock with Date, Day of Week, USB Port, Temperature, Dimmer for Bedside Table, Living Room, Office, Adjustable Volume, Auto DST, Wood Decor Jeco Tray For Bathroom Countertop including 1 bottom open Tray For Bathroom Countertop Spreads and Bowls with the touch of a button continuous wheel control from zero (totally dark) to very bright so it's not glaring at night but still clear during the day Adapter Powered with Memorized Battery: the electric alarm clock runs on electronic power and 2 AAA batteries (not supplied) can be used to store the clock setting in case of power cut