The Function f(x) Accufunkture Mini is a compact, mini-sized envelope-controlled filter (auto-wah) pedal that brings the classic Mutron-inspired envelope filter circuit into a smaller 1590A-sized enclosure. It features Sensitivity, Decay, and Attack controls for shaping the envelope response, plus a Hi/Lo switch to adjust the filter range. The Mini version delivers the same core circuit and tonal behavior as the full-size Accufunkture, with mechanical true bypass and responsive dynamics tailored to guitar, bass, and other instruments.