The Behringer Ultragraph Pro FBQ3102 Dual 31 Band Graphic Equalizer is a professional audio equipment designed for musicians and sound engineers. This analog equalizer offers 31 bands of frequency control for precise sound adjustment, with XLR input and output ports for professional audio connections. The FBQ Feedback feature provides real-time feedback detection and elimination, making it ideal for live performances and recording sessions. This rack-mountable unit, with a sleek black design, is a versatile tool for enhancing and shaping sound in various audio applications.