Reference information90REPLACE THE BACK COVER1 Insert the two catches of the back cover inthe corresponding slots in the phone.2 Slide the cover towards the top of thephone until it locks into place.• TECHNICAL INFORMATIONWireless system Single Band - CDMA 1900 MHzWeight 3.49 oz / 99 gDimensions Length: 108.3 mmWidth: 49.9 mmThickness: 21.6 mmFrequency range 1850.04-1909.92 MHz (TX)1930.08-1989.96 (MHz (RX)Battery voltage 3.6v nominalCharging current 850 mA max with ACP-8 and ACP- 12Operating temp. -22°F to + 140°F(-30°C to + 60°C)Channels 1150 highbandNo. of NAMs 2Memory capacity Phone book: up to 250 entries with up to 2 numbers and4 text fields per nameCalendar: up to 100 entriesDigital data circuit-switched data14.4 kB/sGroup 3packet-switched data (IS-2000) Up to 153.6 kB/s