The Sony RMSG20 Audio Remote Control is originally supplied with Audio System models: Sony HCDG101, Sony HCDG1300, Sony HCDG202, Sony HMCG101, Sony LBTG1300, Sony MCHG101, Sony MHCDG202, Sony MHCG101, Sony MHCG20, Sony MHCG202 Sony RMSG20

The Sony RMSG20 Audio Remote Control is compatible with Audio System models: Sony HCDG100, Sony HCDH100, Sony HCDH305, Sony HCDH405, Sony MHCC30, Sony MHCC305, Sony MHCC405, Sony MHCG10, Sony MHCG100, Sony MHCG500 Sony MHCH100 Sony MHCRXD6AV Sony MHSGS100 Sony RMS44 Sony RMSG10