EC-363 (650-0832) Specifications Faxback Doc. # 3513 General Display: liquid crystal display Memory Capacity: 6,144 bytes Power supply: Two lithium batteries (CR2032, Radio Shack Cat. No. 23-162)...Main and Back-up Power Consumption: 0.05W Battery life: Main battery - approximately 350 hours continuous operation approximately 1 year (1 hour use per day) Back-up battery - approximately 3 years after the low main battery warning appears on the display Auto power off: Approximately 6 minutes after last key operation Ambient temperature range: 32 degrees F ~ 104 degrees F (0 Degrees C ~ 40 Degrees C) Dimensions: Open : 13/32" (H) x 5 11/16 " (W) x 6 15/32" (D) (9.3 (H) x 145 (w) x 163 (D) mm) Closed : 9/16" (H) x 5 11/16" (W) x 3 3/8" (D) (13.9(H) x 145 (W) x 84 (D) mm) Weight: 4 oz (112 g) including batteries (br/all-12/09/94)