SquareGlow Travel Alarm ClockThe SquareGlow travel alarm clock's powerful vibration will ensure you are on tine for every important event. This alarm clock includes an attached clip allowing you to easily attach it to your pillow so it doesn't move during the night. Features 115dB Alarm Super strong vibration 12 24 hour options Easy to set function keys Pop up lighting display Green power technology uses 60% less energy Uses 3x AA batteries (not included) 1 year manufacturer's