Talking LCD/Digital Watch (630-5044) Specifications Faxback Doc. # 17804 Power Source:............................................3V Lithium Battery CR2016 Radio Shack Cat. No. 23-160 Current Drain:.......................................................0.55mA Battery Life:.....................................................Half Year Watch Accuracy:..........................................+/-0.67 Second/Day Operating Temperature:........................32 degrees F to 120 degrees F Dimensions:......................................1 3/4 x 1 7/8 x 5/8 Inches (44x47.5x16 mm) (HWD) Weight:......................................................1.4 oz. (40 g) (/all-11/13/95)