Edifier W820BT Wireless Bluetooth Stereo Headphones

Specification:
- Driver Unit: 40 mm NdFeB drivers
- Bluetooth Version: Bluetooth V4.1
- Supported Profiles: HFP, HSP, A2DP, AVRCP
- Frequency Response: 20 – 20,000 Hz
- Impedance: 32Ω
- Sound Pressure Level: 100 dB
- Dual batteries setup, playback time for up to 80 hrs
- Bluetooth V4.1 with CSR technology
- Foldable design with a flexible steel headband