Using the Fender 2 - Channel ABY Electric Guitar Footswitch is a breeze. First, decide how you want to connect your guitars and amplifiers. You can either plug a single guitar into two amplifiers or two guitars into one amplifier. When the switch is off, you'll enjoy the true hardwire bypass, which means your natural guitar tone remains intact. Use the 'A or B' option to choose between different guitar - amplifier combinations, or the 'A and B' option for a unique blend. The LED illumination on the switch will help you see it clearly on stage, but remember it needs a 9 - volt battery or a power source. For maintenance, keep it in a dry place and avoid exposing it to extreme temperatures. Wipe it gently with a soft cloth if it gets dirty. The durable metal chassis can handle normal wear and tear, but be careful not to drop it or subject it to heavy impacts.