The FB4 gives any Line 6 Digital Guitar Amplifier System simple Channel Select and Tap Tempo control. The Footswitch is a glossy red anodized metal body and easy to use. Step on among its switches to choose one of the four Channels of your Digital Guitar System.You can also access the Tap Tempo function by tapping on the currently lit channel's selector switch. Tap 2 or more times to set the tap pace. The FB4 includes a locking cable television, and links to the Digital Guitar Amplifier System by means of the jacks on the side of the FB4, and the back of your Line 6 amp. The cable allows the 2 to communicate, as well as supplies the FB4 with power; so there's no different power cord or wall wart needed for the FB4.Features: o Brand/Model: Line 6 FB4o Includes Cat 6 Patch Cableo Powered Through Patch CableIf you are interested or have any more questions, CALL me. Willy .