intercom bluetooth helmet
1. Support 500m rang full duplex talkback
2. Intercom priority, automatically switch to the intercom when talking, manually change to mobile phone when incoming call
3. Auto switch seamlessly among the Bluetooth mobile phone, intercom, stereo and the FM radio
4.Call out, receive, reject and hang up are available
5. Support voice dial
6. Support the last number redial
7. DSP noise suppression and echo cancellation to ensure the crystal clear voice quality
8. TTS with 8 languages is optional
9. FM radio frequency function covers 76~108MHz is optional
10. Build-in PMR function to control the PTT, be able to communicate with the crowds far away from 2 kilometers
11. Bluetooth intercom adapter is optional, to bring about communicating with the crowds far away from 5 kilometers
bluetooth intercom helmet(for policemen)