KNA VV-Wi incorporates a wireless signal transmission for a reliable, stable and cable-free connection to an amplifier, mixer or audio interface. The built-in UHF transmitter offers performers a high-fidelity sound with the ability to move around the stage freely. For the studio or other times when a wireless connection isn’t needed, VV-Wi plugs in with a regular 1/8″ audio cable. Mount the pickup jack housing on the lower bout, just below the waist on the 4th (G) string side of your instrument. Adjust the height of the barrel clamps to tighten the pickup to the instrument. Players can control their output signal onstage or in the studio by clicking the onboard "+" and “-“ buttons. The transmitter housing is encased in laminate birch with an elegant and stylish mahogany top. The piezo sensor has a lightweight wooden casing to achieve maximum tonal sensitivity. VV-Wi has a passive piezo design that reproduces the instrument's authentic voice. The adjustable clamps have protective padding at each point of contact to prevent damage to your instrument’s finish. he pickup comes with universal size barrels to attach the jack housing equally well to both violin and viola bodies with just a few turns.