Passive pickup system for violin and viola;Wood encased piezo pickup (thickness approx 1.8 mm), mountable by wedging into the wing slots ;Pickup firmly mounted on the beautifully shaped ebony output unit (6.3 mm / 1/4″ jack socket);Mounting with chinrest screws on the frame, all contact points to the instrument are lined with cork, metal surfaces are high quality chrome;Weight only 36 g / 1.3 oz;Cable length between pickup and housing: 10 cm, max. impedance 1500 ohms;