1. Bluetooth version: Bluetooth 5.1
2. Support: CVC noise reduction, 3D audio technology
3. Battery parameters: 3.7V/750mAh
4. Electrical parameters: DC 5V/1A
5. Charging port: 3.5mm round hole charging/headphone jack
6. Intercom mode: 4-person intercom
7. Waterproof level: IP65 can effectively block rainwater and can be used in rainy days
8. Using CVC noise reduction technology, it can intelligently reduce noise and automatically identify environmental noise