Key Features Drivers : 11 mm dynamic Driver sensitivity : 98 dB3 dB @ 1 kHz Frequency response : 20 Hz -20,000 Hz Bluetooth : v5.2 Charging interface : Wired, USB Type-C Battery capacity :520 mAh 40 dB Noise Cancellation Water & Sweat Resistance Touch Controls Upto 38 hours Battery our last price is 4000