Abstract: A wireless audio/video (A/V) system includes an earphone and an A/V device. The earphone is configured to allow user input of a control command and to transmit the control command. The A/V device is configured to receive a multimedia signal and to extract an audio signal component thereof, to receive the control command from the earphone, and to process the audio signal component accordingly. The A/V device is operable to transmit the processed audio signal component to the earphone for reproduction. The earphone and the A/V device are configured to communicate via a wireless network using Wireless Fidelity (Wi-Fi).