The R1850DB bookshelf speaker remote control lets you take full advantage of the R1850DB bookshelf speakers. Swap between different inputs using the buttons the remote from the comfort of your couch without having to press in the volume knob. Adjust using the volume controls on the remote. Both the volume up and volume down buttons control both speakers. No need to adjust them independently. The playback controls on the remote enables you to control playback on Bluetooth connected devices.