Abstract: A bluetooth headset for transmitting and receiving digital data and analog audio signal is disclosed. The bluetooth headset comprises: a bluetooth module for transmitting and receiving a wireless signal comprising a control signal, the format of the wireless signal being compliant with a bluetooth specification; an audio encoder/decoder for encoding an analog audio input signal to generate digital data, and decoding the digital data to generate an analog audio output signal; a memory unit for storing the digital data; and a control unit which is coupled to the bluetooth module for converting the wireless signal from received by the bluetooth module into the digital data, and transferring the digital data to one of the memory unit or the encoder/decoder.

Abstract: A USB hub with a wireless communication function comprises a USB interface module, a wireless communication interface module, a USB control circuit, and a plurality of digital delay circuits. The USB interface module comprises a USB upstream port and at least one USB downstream port. The USB upstream port and at least one USB downstream port are connected to an external host system and at least an external USB device, respectively. The wireless communication interface module can communicate with an external wireless device through a wireless medium. The USB control circuit connects between the USB interface module and the wireless communication interface module. The control circuit can control the signal transferred between the external host system and the external wireless device, and can control the signal transferred between the external USB devices and the external wireless device.