I buy this remote control to replace the old edition, improvements are many, it is already much finer she takes AAA batteries against the AA for the previous model, this remote is much fuller, volume keys, tv channels, to switch from one device to another through PS3 keys, AMP and TV, there also a 3D button for different devices there a red light that lets you know which device is controlled not to s' losing, really better than the old model I use only this now remote because most need to have several it is all I really advice you !!