The easy-to-use VC-1 reproduces accurate cello tone while requiring zero modification to your instrument. A wood-encased piezo sensor installs in eye slot of the bridge, held in place via friction. Neatly-finished shim discs ensure the perfect fit. The 1/4" socket jack attaches securely to tailpiece with a Velcro band. The VC-1 is entirely passive, designed to work flawlessly with your favorite amplifier or colored via a preamp of choice.