Portable bridge-mounted piezo, tailpiece-mounted output jack for cello The easy-to-use VC-1 reproduces accurate cello tone while requiring zero modification to your instrument. A wood-encased piezo sensor installs in the eye slot of the bridge, held in place via friction and the 1/4" socket jack attaches securely to the tailpiece. Features: Safe install A wood-encased piezo sensor installs in the 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 the tailpiece with a Velcro band. Wooden sensor The piezo sensor has a lightweight wooden casing to achieve maximum tonal sensitivity and transmission. Natural sound VC-1 has a passive design that reproduces the natural sound of the instrument with no need for a battery. Complete installation set The pickup comes with additional neatly-finished shim discs for fitting the sensor in narrow bridges. DOWNLOAD INSTALLATION INSTRUCTIONS HERE specifications Diameter of the piezo element 15.40mm / 0.88" Thickness of the piezo element 2.40mm +/- 0.08mm 0.095" +/- 0.003" Lead cable from jemale jack to element 22.5cm / 8.86" Maximum Impedance 800 ã_