12K Ultrathin Electronic Organizer (650-0878) Specifications Faxback Doc. # 16868 Power Source:................Main Battery, 3V, Type CR2430, Cat. No. 23-166 Backup Battery, 3V, Type CR1616, Cat. No. 23-167 Battery Life:...............................Main Battery, approx. 18 Months Backup Battery, approx. 5 Years Working Temperature:..........................32 degrees F to 104 degrees F Dimensions:.............................3 1/16 X 5 15/16 X 3/8 Inches (HWD) (78 X 151 X 10 mm) Weight:...................................................9.94 oz. (281.8g) Specifications are typical; individual units might vary. Specifications are subject to change and improvement without notice. (/all-09/14/95)