earphone size: 28.5*18.5*17mm x 2
earphone box size: 62 x 42 x 29 mm
headphone battery capacity: 45mah*2
box battery capacity: 500 mah
battery type: li-polymer battery
maximum playback time: about 4-6 hours
headphone standby time: about 120 hours
wireless connection: bluetooth 5.1
headphone input: 5v 40ma
charging box input: 5v 500ma
charging box output: 5v 100ma