POWERBASS XL-BTRSPOWERBASS XL BTRS UNIVERSAL BLUETOOTH ROCKER SWITCH Adding your favorite MP3 player to your UTV couldn't be easier with the XL BTRS Universal Bluetooth Rocker Switch Controller . It features simple to 6 button design that will give you control over your Bluetooth device with volume, track and input control. The XL BTRS is easy to install and integrate to your amplified aftermarket sound system giving you a wireless source and the ability to control it