1. Bluetooth version: 5.0
2. Battery capacity: 400 mAh
3. Material: ABS, aluminum alloy and polyurethane.
4. Charging time: about 2 hours
5. Music time: about 15 hours.
6. Microphone directivity: Omnidirectional
7. Weight: 187g
8. Meet ergonomic design and use comfortably.