N2 neck hanging call noise reduction wireless earphones

1. Bluetooth version: Actions 5.0+ MVsilicon DSP. 2. Battery capacity: 18000mAh. Charging time: 4-5 hours. 3. Use time: 8 hours. 4. Speaker size: 78mm*2+57mm*2, power: 200W. 5. Size: 396*131*174mm. Weight: 3.274kg. 6. Support Bluetooth, AUX, USB flash drive, TF card, etc. playback 7. Equipped with 2 wireless microphones.