Main and auxiliary device communication method of TWS Bluetooth system

The invention discloses a main and auxiliary device communication method of a TWS Bluetooth system. In the existing TWS Bluetooth system communication, a primary device and a secondary device perform periodic communication at the same time point according to a certain bandwidth and interval, so that the communication quality is reduced, or a large amount of retransmission is caused by insufficient bandwidth. According to the invention, classic Bluetooth links are established between a main device and a sound source device and between the main device and an auxiliary device of the TWS Bluetooth system, and the auxiliary device establishes a virtual monitoring link for the sound source device. The main device and the auxiliary device are in data interaction communication, the main device determines the needed communication bandwidth according to the communication data volume, the Bluetooth data packet type and the allowed retransmission times and informs the auxiliary device, the main device and the auxiliary d