Used Remote Control RM-MC10L For SONY CD MD Walkman - Black Original line control for Sony CD player D-EJ855. This model has no backlight. The operation functions are the same as MC11EL. It is compatible with EJ885, 955, 985, 1000, 2000 series, NE1-20, 720-830 series CD players, and many MD players. Was supplied with MZ-N707, MZ-E501, MZ-E500 as well as some CD players. 9 character display w/ smooth scrolling. NO backlight. The RM-MC11EL is the same thing with a backlight. European/World N707 only (10L), North American model (MZ4R) Buttons range from change of display (track/disc title?if any, track time), play modes, repeat, sound mode, pause. Special twist knob on top of remote; twisting it 'up' or 'down' changes tracks | or |. pulling it out gives access to volume - and +. Circular Stop button on very top of remote on the twist knob. Hold switch opposite of the 5 buttons.