DB-1 faithfully reproduces the breadth of tone and dynamic range of your instrument without modification. 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" jack housing secures non-destructively to the tailpiece with a screw assembly at the string eye. The piezo sensor has a lightweight wooden casing to achieve maximum tonal sensitivity and transmission. DB-1 has a passive design that reproduces the natural sound of the instrument with no need for a battery. The pickup comes with additional neatly-finished shim discs for fitting the sensor in narrow bridges.