The invention relates to a apparatus for implementing a hands-free function, the apparatus comprising a mobile station (22) and a headset (21). The apparatus comprises means for transferring an audio signal of a call between the mobile station (22) and the headset (21) for hands-free implementation of the call. The mobile station (22) and the headset (21) both comprise a short-range radio transceiver (BT, BT2) for wireless transfer of files between the mobile station (22) and the headset (21). The headset comprises a memory means for storing the files in the headset. The invention also relates to a headset (21).