Speaker: high-quality true copper ring speakerChip: Jerry 6 series, support up and down song, increase and decrease volume, pop-up linkPlaying time: 4-5 hoursStandby time: 40 daysTalk time: 4 hoursHeadphone battery capacity: pure cobalt 50 mACharging box battery capacity: pure cobalt 500 mAhEffective distance: 20+MStandard configuration: earphone*2 + charging box + USB charging cable + manual + packing box
