Awei Wireless Headphone ANC Function

Bluetooth Specifications Bluetooth version: V5.0 Supported protocols: A2DP, AVRCP, HSP, HFP Standby time: 300 h Music playing time: 36h(Noise reduction on 28h) Charging time: 2.5 h Charging voltage: DC 5V Bluetooth operating frequency: 2.402G-2.480G Ambient temperature: -20/+ 65 °C Transmission distance: 10m Battery capacity: 500mAh/3.7V Driver Specifications Driver Unit: 40mm Sensitivity: 102dB ‡ 3dB Impedance: 320 - 15% Frequency Response: 20-20000Hz