Specs Model No: KZ-H10 Frequency response range: 20Hz-20KHz Impedance: 32Ω Sensitivity: 116±3dB/mw Battery capacity: 500mAh Bluetooth version: 5.0 Transmission distance: ≥ 10m Weight: 282±10g Battery Life: Running Time: about 30 hours Standard Mode: about 25 hours (ANC Mode) About this item...