Key attributesnoise cancellingEnvironmental Noise Cancellation (ENC)Waterproof StandardIPX-5headphone form factorIn eartouch screenNOEstimated Battery Life3-5 hoursVolume ControlYesBattery Charging Time3-5 hoursBT WirelessBluetooth v5.1battery indicatorDigital Displaywireless delay time30 Msprivate moldNObattery capacity(mah)50mAhbrand nameHRPplace of originGuangdong, ChinaBattery Capacity200-500mahnoise cancellationEnvironmental Noise Cancellation (ENC)ConnectionWireless