4-Lang Translator (630-0666) Specifications Faxback Doc. # 8587 Power Source.........................................................2 X 3V (CR2016)Lithium Battery Cat. No. 23-160 Battery Life...........................................Approximately 1 Year Dimension..........................................3/8 x 37/8 x 21/4 inches (HWD) (9.5 x 98 x 57 mm) Weight.......................................................1.4 oz.(39 gm) (RLR-11/01/93)