Fishman Prefix Pro Blend Pickup System, Narrow Format Designed for slim-bodied acoustic-electrics  2 x 3 (50mm x 76mm) bezel occupies 1/3 less space than standard Prefix models Internal microphone with Pickup/Mic blend control Wide-range semi-parametric Contour EQ Stereo or mono signal paths for the systems pickup and microphone System includes an Acoustic Matrix Undersaddle Pickup and Switchjack Stereo Endpin Jack