A mobile device (200) for receiving an audio signal from a source (390) via a base station (300) is disclosed. The mobile device comprises a first wireless communication interface (220) operable to communicate using a first mode of wireless communication; a second wireless communication interface (230)_operable to communicate using a second mode of wireless communication, the second mode having a shorter range than the first mode; and a controller (210) configured to switch from receiving the audio signal from the base station via the first wireless communication interface to receiving the audio signal via the second wireless communication interface when the mobile device is proximate to the base station.