Using the Fender Bubbler Chorus Guitar Effects Pedal is easy. First, connect it to your guitar and amplifier using the appropriate cables. Plug in the 9 - Volt DC Negative AC Adaptor to power it up. To start shaping your tone, use the switchable Slow and Fast speeds. You can independently adjust the Rate and Depth controls to find the sound that suits your music best. The Wave toggle switch gives you a choice between Sine and Triangle waveforms, so experiment with both to see which you like more. When you play, the Sensitivity control will make the effect respond to how hard you're strumming or picking. Just keep in mind that the harder you play, the stronger the Bubbler effect will be. As for maintenance, keep the pedal clean and dry. Avoid exposing it to extreme temperatures or moisture. If you're not using it for a long time, unplug the power adaptor. That's all you need to know to get great sounds from your Bubbler Chorus pedal.