RM-MC33EL, compatible with all NE series CD players such as NE830/NE20/NE730/NE920 and most MD models such as N10/NH1/RH1/EH1.

Applicable models: universally used for most of Sony's CD and MD

It can replace the following types of wire controls: RM-MC32EL/33EL/35ELK/53EL/55ELK (except for Chinese, other functions are the same)
MD:
MZ-N1/MZ-N10/MZ-N505/MZ-N707/MZ-E707/MZ-E900/MZ-E800/MZ-
E700/MZ-E600/MZ-E501/MZ-E500/MZ-E95/MZ-E80/MZ-E77/MZ-E75/MZ-
E70/MZ-E60/MZ-E55/MZ-E45/MZ-E44/MZ-E33/MZ-E909/MZ-R909/MZ-
R900/MZ-R90/MZ-R91/MZ-NH1/MZ-RH1/MZ-EH1/MZ-NH3 etc.
CD player:

D-CJ01/ D-EJ1000/DEJ2000/D-EJ955/ D-E915/D-EJ855/EJ955/EJ985/EJ885/NE10/NE900/NE20/NE830/NE920/NE730

/NE720/NE820/NE9/NE1

And so on almost all Sony EJ and NE series models