1. High sound quality, effectively reduce wind noise, high speed can also be clear to answer the phone / intercom
2. Support multi-person intercom, intercom distance up to 1.5km
3. Wireless transmission range: about 1500M
4. Mobile phone call distance: about 50M
5. Bluetooth: 5.1
6. Support Bluetooth protocol: A2DP,AVRCP,HS/HF
7. Battery capacity: 850mAh
8. Interface: Type-C/USB-C
9. Charging time: about 2.5h
10. Working time: about 30h
11. Charging voltage: 5V
12. Speaker diameter: 40mm
13. Frequency range: 2.402GHZ-2.480GHZ
14. Material: ABS/PVC plastic
15. Size: 10.1 x 5.4 x 2.05cm