Headphones Edifier WH700NB ANC Gray

Bluetooth V5.3 Bluetooth Protocol A2DP,AVRCP,HFP Effective Distance ?10M Playtime (hours) ANC ON: 45h ANC OFF:68h Battery Capacity 3.7V/500mAh Charging Port USB-C Input 5V/1A Charging Time 2h Weight 271g Audio Coding SBC Driver Φ40mm Dynamic Impedence 32Ω Sound Pressure Level 91dB±3dBSPL(A) Frequency Response 20Hz-20KHz Mircophones 1pcs (ENC) 1pcs/side (ANC) Microphone Sensitivity ECM:-32dB±3dB IP Rating / Dimension (L x W x H mm) 165.6 x 84.2 x 200.5mm