Using The Pinwheel Rotary Speaker Emulator Pedal is easy. First, connect it to your guitar or keyboard using the stereo inputs and outputs. Then, plug in the 9 - Volt DC Negative AC Adaptor to power it up. You can choose different rotary speaker voices by selecting the appropriate option. Switch between Slow and Fast speeds to get the sound you want for your music. The onboard Overdrive can be used to add some extra texture to your tone. The Sensitivity control is really cool - it changes the effect based on how hard you play. Just dig in more, and you'll notice the effect getting stronger. As for maintenance, keep the pedal clean and dry. Avoid exposing it to extreme temperatures or humidity. If you're not using it for a long time, unplug the power adaptor. And always handle it gently to prevent any damage.