Fantech go air wh02 wireless

- Headset Bluetooth : BT Ver 5.0 - Effective range : 10m - Driver Unit : 40mm - Speaker Sensitivity : 105±3dB - Speaker Frequency Response : 20-20kHz - Microphone sensitivity : -42±3dB - Microphone directivity : Omni Directional - Playback time : UP TO 20 hours (vol 70%) - Standby time : UP TO 200 hours - Charging time : approx 2 hours - Weight : 98.5g (headset only)