Back Lit Wall Clock: Modern back lit wall clock brings a classical, yet unconventional flair Bright Stylish Color: Bright teal and matte silver accents create a highly and visible look that draws attention Silent Sweep: Contrasting black hands and a no-tick silent sweep hand Off automatically depending on the amount of light in the room Automatic Illumination : Fully illuminated backlight turns on and off automatically depending of the light in the room 10 inch diameter: 10-inch diameter and 1.75-inch depth bring modest size that won't overpower your other decorations Requires (1) AA battery and (3) AA batteries (Not Included)