The CD-R510 Card Remote from Pioneer is an add-on or replacement remote for Pioneer CD head units. It controls source selection, audio adjustments, fast forward, rewind, track up/down, volume, power and phone answer/hang-up functions (for Bluetooth-enabled units). The numeric keypad is used for direct track or preset selection or to dial a telephone number (for Bluetooth-enabled units). The CD-R510 is compatible with DEH, AVH and MVH models that are remote-capable.