Yamaha YAMAHA WJ553400 REMOTE CONTROL THE YAMAHA WJ553400 REMOTE CONTROL ALLOWS EASY OPERATION FOR YOUR COMPATIBLE YAMAHA MODEL. THE WJ553400 IS PERFECT IF YOU LOSE THE ONE THAT WAS INCLUDED WITH YOUR UNIT OR IF YOU'RE IN NEED OF AN ADDITIONAL REMOTE. THE WJ553400 CONTROLS ALL BASIC FUNCTIONS OF THE UNIT.BATTERIES SOLD Works with the following models: Yamaha YSP3000, Yamaha YSP4000, Yamaha YSP-4000BL