Chip: JL8973 Battery: 30mAh for the headset, 300mAh for the charging compartmentUse time: about 4.5hFeatures: 1. Support ANC active noise cancellation function, about 25dB, support pop-up function, three true power. Support wireless charging function, no main and secondary ear, dual ear at the same time connected to the phone, free to switch between the left and right ear use, better signal.Support in-ear detection function.Support Apple Android name change function.Support headset positioning function.