Battery Life
12.4 hours of mixed use (4850 + DBMD4 DSP) (0), Continuous music playback time: Max. 30 hours(NC ON), Max. 40 hours(NC OFF)Continuous communication time: Max. 24 hours(NC ON), Max. 28 hours(NC OFF) (0), Keypad: 6 months. Sensors: 2 years (1)
