Black Friday 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) Battery, Maximum music play time with ANC off (hours) 65 Maximum music play time with ANC on (hours) 50 Maximum play time (hours) 65 Maximum talk time (hours) 33 Battery, Up to 9 hours of surfing the web using a mobile data network Battery