Professional Compression Cores: Features classical C4 compression circuitry for precise dynamic control, enhancing sustains and smoothness to deliver tighter, more penetrating tones for guitar/bass. Four Knob Precisions Control: Equipped with Sustains, Levels, Attack, and Clipping knobs for adjustable compression from subtle to extreme over drives, catering to playing scenarios and tone. Compact & Portable Design: Small pedal size with light weight metal housing saves space on pedalboards, ideal for live gigs, rehearsals, and home practice without extra bulk. User Friendly Operations: Standard 6.35mm input/output socket for plug and play use; top mounted LED indicates, crisp footswitch enables quick, accurate tone switching . Package includes: 1Pc Guitar Effects Pedal