The BOSS WL-20L is a wireless system for electric guitarists and other electronic musicians. It provides easy operation through its plug-and-play user experience. Simply plug the included WL-T transmitter into your guitar or line-level instrument (keytar, digital wind instrument, etc.), and plug the receiver into your amplifier, first pedal in the chain, or pedalboard input; or if you are using a line level device, plug into a mixer or PA. Now, you are free to roam up to 50' away from your amp without worrying about dragging gear, tripping up your bandmates, or accidentally unplugging yourself.