Add the power and sonic clarity of Fishman’s renowned blending technology to your guitar, without any visible modification. The Ellipse Matrix Blend combines the world’s best-selling undersaddle pickup, the Fishman Acoustic Matrix, with the popular Ellipse Blend, to give you incredible tone at your fingertips. With its flexible gooseneck condenser microphone, volume, blend, and phase controls, the Ellipse Matrix Blend makes it possible to have the best of both worlds when you play. The sparkling, transparent sound and control that our Acoustic Matrix pickup is complemented by the unique and expressive character of a microphone.FeaturesSuper low-noise onboard preamp systemErgonomic soundhole-mounted design puts slider controls at your fingertips to maintain a natural playing positionFeatures the world’s best-selling undersaddle pickup, the Acoustic MatrixPhase switch (feedback control)Custom-designed cardioid condenser mini-microphone with gooseneck mount and accessible mic/pickup blending, plus mic trim controlUnique patent-pending neodymium magnetic mounting system for easy, solder-free installationSolder-free connectionsSwitchable low-frequency tone-shaping built into preampPickup available in wide, narrow or split formatsProfessional installation recommendedSpecsPickup Length: Standard Pickup Length Of 2.65"" (67.3 mm) Will Fit Most Guitars With 2.5"" (63.5 mm) String SpacesSoundhole: Accomodates Most Round Soundholes From 3-7/8"" (98 mm) To 4-1/8"" (105 mm) In DiameterBattery: 9-VoltBattery Life: 220 Hours.