Fangrui Product Details 1. Hysnox Hy-02 Bluetooth 5.0 Motorcycle Helmet Headset 2000m 6 Riders Intercom Headset 2. Features 3. Qualcomm Bluetooth Voice Chip Version 5.0 4. Intelligent Dsp Audio, Cvc 12th Generation Noise Reduction Processing, 16k Voice Transmission 3d Stereo Voice 5. One-key Networking, 2km Distance Group Intercom (ideal Distance) 6. 6 People Full-duplex Intercom 7. Second Connection Pairing Speed; 8. Music Sharing Function, Music Eq Function, Fm Radio 9. Multi-language Prompt Tone Operation 10. Mobile Phone, Mp3, Gps Voice Bluetooth Transfer 11. Voice Wake Up 12. Automatically Answer, Support Redial Of The Last Call Number 13. Smart Microphone Pickup 14. Simultaneous Bluetooth Connection To 2 Other Devices (mobile Phone, Mp3, Gps) 15. Support Voice Communication At A Speed Of 120 Kmh 16. 40mm Tuning Speaker Diaphragm, Shocking Music 17. 900mah Battery Capacity, Continuous 28h Intercomphone, 33h Listening To Music, 500h Standby 18. Support Pairing Intercom With Third-party Bluetooth Walkie-talkies 19. Specification 20. Working Distance: Two-person Intercom 1000 Meters, Group Intercom 2000 Meters (under Ideal Environment) 21. Working Frequency: 2.4ghz 22. Bluetooth Version: Bluetooth 5.0 23. Support Bluetooth Protocol: A2dp And Avrcp 24. Operating Range: Mobile Phones Up To 10 Meters 25. Battery Type: 900mah Rechargeable Lithium Polymer 26. Standby Time: Up To 500 Hours 27. Talk Time: Up To 28 Hours For Mobile Phone Talkintercom; Up To 33 Hours For Music 28. Charging Time: About 2 Hours 29. Power Adapter: Dc 5v 1a (optional) 30. Charging Interface: Type-c Interface 31. Working Temperature: 41f-104f (5-40c) 32. Storage Temperature: -4f-122f (-20c~50c)