Technics EUR643809 allows the user to control a compatible CD changer remotely. It requires 2 AAA batteries to operate and has a range of about 23 feet. The remote can be used to turn the changer on or off, select discs, tracks, and play modes, and adjust the volume. It also has a number of other features, such as the ability to program up to 20 tracks, repeat play, and skip discs or tracks. The remote is easy to use, with clearly labeled buttons and a simple layout.