Glow in The Dark - The numbers and hands which have night light function.Allows you to read the clock quickly at night.It asks for absorbing enough light energy during the day.At night,it is released in a fluorescent manner,so you can see the light at night or in the dark Easy to Read - Design with large numbers contrast to the dark color face,which makes reading the time easy from any angle.perfect for dining rooms,living rooms,family rooms,bedrooms,study room,kitchen,office and meeting room Silent Sweep Movement - The premium quality of the precise quartz movement guarantee accurate time,also the silent sweep ensures a good study and work environment Simple to Install - Easy to install,it securely hangs on your wall within a few seconds Battery Operated - Powered by one AA battery (not included) please use normal carbon battery for the clock,don't use alkaline battery and Rechargeable Battery which could cut down the life of the mechanism and affect the accuracy of the time