Jumbo LCD Alarm Clock (630-0739) Specifications Faxback Doc. # 34043 Batteries: Backlight: ..................... 2 AAA (Radio Shack Cat. No. 23-555) Clock: ........... One A76 Button Cell (Radio Shack Cat. No. 23-115) Battery Life: ............................................... 1 year Accuracy: .......................................... +/- 0.5 Sec/Day Dimensions (HWD): ....................... 2 7/8 x 4 1/8 x 2/3 inches (73 x 105 x 17 mm) Weight: ................................................... 3 1/2 oz (99 gm) (YO/EB 6/20/96)