Communication distance: 10 meters (barrier-free open environment) Charging box size: 62X42X26mm Headphone charging time: about 1.5 hours Battery type: Lithium-ion polymer battery Charging time of charging box: about 2.5 hours Charging box battery capacity: 300mAh Continuous playback time with dual headphones: about 4 hours When the headset is in standby: about 150 hours Single earphone battery capacity: 40mAh Charging box standby time: about 6 months
