This is the Blender from the Scandinavian handmade brand, Z CAT PEDAS. It was purchased new, but has never been used. Please understand that it is a used item that has been stored at home. From the manufacturer's website: The Blender Looper functions not only as an FX loop and AB switch, but also features the ability to blend a clean sound (original sound) with the sound of the LOOP. This allows you to adjust the mix of the effect sound and the dry signal. ■ Main Features ・MIX control for original sound and effect sound (LOOP) ・True bypass switch ・9V (center negative) AC adapter only