Abstract: The device connection method disclosed in the disclosure enables an audio transmitting device to generate pairing information according to a first sequence and send the pairing information to an audio receiving device, receive first and second response information from the audio receiving device to complete pairing with the audio receiving device, and then connect to the audio receiving device according to a second sequence. The embodiments of the disclosure implement pairing and connection with at least one audio receiving device via multiple responses, improving the stability and anti-interference ability of device connection.

Abstract: The disclosure provides a synchronization method, a synchronization device, and a transceiver device for multi-channel data transmission. The synchronization method transmits test data to N receiving devices, obtains a transmission cycle and N delayed playback timestamps based on the information fed back by the receiving devices, the data packet preparation time, a first time, and a predetermined error tolerance time; transmits audio data packets to the N receiving devices, obtains an existing data playback duration and a time difference based on the acknowledgment packets fed back by the receiving devices; adjusts the predetermined error tolerance time to a target error tolerance time according to the comparison result between the time difference and a predetermined time difference threshold.