The Sony RMS343 Audio Remote Control is originally supplied with Audio System models: Sony FHC33X, Sony HCD451, Sony HCD541, Sony HCD633, Sony HCDC33, Sony HCDC633, Sony MHCC33, Sony R5520, Sony RMU451, Sony RMU541 Sony SUS5420 Sony SUS5520

The Sony RMS343 Audio Remote Control is compatible with Audio System models: Sony CFD530, Sony FHC5X, Sony HCDC50U, Sony HCDC55, Sony MHC55, Sony MHCC50, Sony MHCC55,