This is a Genuine Original Sony AC-ES454 AC Power Adapter. This AC Power Adapter is used for Minidisk, Walkman, Mp3, CD, digital cameras and other units. It would work for any brand that takes this power, and on MANY of the Sony players - look for the small yellow input on yours, if it says 4.5V ... it will match the yellow colored plug on this adapter! This is what you need!