Oregon Scientific RM938 White Alarm Atomic Clock for Office Home College Dorm Desk Radio-controlled atomic time clock. Accurate and automatic time sync over the air (where available) including daylight savings Portable, lightweight and battery powered. Unit dimensions: 5x2x5, Weight: 7.2 oz Easy to read LCD screen with backlight button Displays time, date, and day of the week Ideal for your home or office. Flashy color choices for dorm rooms