Samsung SPH-N290 Design features: Numeric keypad; Talk time: 2.90 hoursthe average is 11 h (675 min); Stand-by time: 7.0 days (168 hours)the average is 20 days (477 h); Type: Li - Ion; CDMA: 800, 1900 MHz; AMPS: 800 MHz; Positioning: GPS; Phonebook: 250 entrie...