Functions 1. The maximum intercom distance can reach 1200 meters, riding smoothly and within easy reach. 2. Advanced Qualcomm chip QCC3003. Bluetooth 5.0. 3. 2 people can talk in real-time in full duplex at the same time. 4. Mobile phone to answer calls, play MP3 music, GPS playback.Built-in FM radio function.. 5. with CVC call noise reduction function. 6. Waterproof rating: IP67. 7. Supports 2 devices to be interconnected at the same time, pairing and intercom with most brands in the market. 8. Music sharing, sharing the beauty of riding. 9. Support to connect ordinary radio PTT control walkie-talkie through adapter and K line. 10. Press the key to enter the factory self-test mode, you can function on the key detection. 11. Support software upgrade, easy to customize. 12. 800mAh capacity battery, low power consumption system operation, strong battery life for 15 hours listening to music/answering calls. 13. Five-color decorative pieces, free to replace. 14. High-power stereo high-definition sound earphones bring real music experience fun.