Music gives people relaxation, free enjoyment, and a high-quality headphone is essential. We designed this wireless bluetooth headset to focus on the audio quality of the headset, wear comfort, and design aesthetics. This earphone plan adopts CSR8670 bluetooth 4.0 dual mode chip; Based on the master, from two bluetooth devices, the main device is used for call processing and control, and then the audio is transmitted to the subordinate headphones. The two devices cooperate to realize the wireless 2.0 channel, and the two device keys are connected. In general, TWS is the transmission core technology between two earphones. Currently, this true wireless TWS is the first wireless headset in China.