Adopt Qualcomm Qcc30xx series realizes long-distance multi person call interaction through multiple connections of Bluetooth devices, supports mobile phone connection, and calls are preferred,

Support functions:
1.2/4/6 person full duplex voice intercom
2. HFP / HSP call
3. A2DP music playing
4. Bluetooth voice assistant and noise elimination CVC
5. USB DFU upgrade
6. Support additional functions, such as GPS, etc
7. The intercom distance is nearly 1000m