REMOTE COMMANDER (RM-AAU020 THE SONY 1-480-585-21 REMOTE CONTROL ALLOWS EASY OPERATION FOR YOUR COMPATIBLE SONY MODEL. THE 1-480-585-21 (RM-AAU020) IS PERFECT IF YOU LOSE THE ONE THAT WAS INCLUDED WITH YOUR UNIT OR IF YOU'RE IN NEED OF AN ADDITIONAL REMOTE. THE 1-480-585-21 CONTROLS ALL BASIC FUNCTIONS OF THE Works with the following models: Sony STRDH100, Sony STR-DH500