What are the differences between an active and passive volume pedal, and how do these differences affect their performance and functionality?

An active volume pedal requires power to operate and often includes additional features like boost or tone shaping. It can provide more control over volume levels and signal clarity. In contrast, a passive volume pedal does not require power and may have a simpler design. It may affect the tone slightly and may not offer as much precision in volume adjustments. The choice between the two depends on the user's preferences for functionality and sound quality.