Nokia HS-2R FM Radio Headset w/ Volume Control Fully automatic switch lets you change from radio to phone and back to radio No separate battery needed Display shows the selected radio channel Send and End button on the headset for convenient operation Compatible with Nokia 6620, 6560, 6100, 6019i, 6016i, 6015i, 3589i, 3588i, 3587i, 3586i, 3220, 3120, 3100