Check the listing for details. KNA PICKUPS VV-Wi Violin/Viola Pickup. Color: see description, Condition: New. Listed at 265.56 USD. The KNA VV-Wi is a wireless piezo pickup for violin and viola that combines uncompromising sound quality with maximum freedom of movement. With its integrated UHF radio system, built-in battery and elegant mahogany look, it offers a powerful, easy-to-install solution for the stage, studio and classroom. The system consists of a passive piezo pickup in the bridge, an integrated transmitter with volume control and a flexible receiver with 1/8" output. For maximum flexibility, operation via a cable connection is also possible. The VV-Wi can be mounted safely and without damage to the instrument - padded clamp holders ensure protection and a firm hold. The USB-C charging function guarantees fast, reliable charging. All of our items have a 30-day return policy without explanation. Sheet music,.