Using the BOSS AW-3 Dynamic Wah pedal is easy. First, connect your guitar or bass to the appropriate input. If you're using a bass, use the dedicated Bass input. For guitarists, you can enjoy the classic 'wah' effects right away. To use the 'Humanizer' effect, just select it on the pedal. You can control the wah effect using the built - in controls or an optional expression pedal in EXP Pedal mode. When setting the tempo, you can choose between pedal control or a fixed rate in Manual mode. 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, store it in a safe place. And always make sure to use the correct power supply to avoid any damage.