The Fishman Matrix Infinity is an undersaddle acoustic guitar pickup and preamp system that delivers transparent and natural sound allowing your instrument's natural tone to be heard in amplified performances. This Fishman pickup system is noted for providing crystal clear string response, balance, and sensitivity. The pickup senses the motion of the entire saddle, providing superb string-to-string balance and great sensitivity to the guitar strings and guitar top. The Fishman Matrix Infinity features switchable voicing and full volume and tone control with minimal tone coloration.