Whirlwind SEL A/B or Both guitar system switcher

Very good condition, shows normal signs of use, light scuffs and soiling.  There is some light bubbling in the top sticker.  Tests normally, new 9V installed.  External power supply not included.  

The Whirlwind SEL A/B Instrument Switch Selector is designed to route one instrument/input to two outputs, OR two instrument/inputs to one output. The switching is achieved via dual mechanical push/push type switches. Its heavy-duty construction is virtually indestructible, perfect for demanding gigs. This foot switch box features professional 1/4" I/O jacks, A/B button, BOTH button, low-noise output, optical switching, and dual LEDs. Simply put, if you're a professional guitar hero or aim to be one, the Whirlwind SEL answers the call with affordability and versatility.