The Radial Tonebone Loopbone Loop Controller controls two separate effects loops, and either or both can be active at any time. It also offers a footswitchable boost with gain control. A remote control output for switching amp channels can be tied to either loop or boost switch. Other features include a tuner output and Radial Engineering's "Drag" (impedance matching) control. AC power supply included. This pedal is in excellent- condition.