Using the BOSS FS - 7 Dual Foot Switch is a breeze. First, connect it to your effect pedals or amp using the parallel DC cable. Plug in the 9v adapter (a power splitter is included) to power it up. If you don't have power, it can still work as a momentary switch, but the LEDs won't light up. You can choose between latch and momentary modes according to your needs. When using it on a pedalboard, its tandem - arranged footswitches save a lot of space. As for maintenance, keep it in a dry and clean place. Wipe it gently with a soft cloth if it gets dirty. Avoid dropping it or subjecting it to strong impacts as it has a durable steel chassis but is still a precision device.