Boston   violin preamp pickup system, volume+tone control, battery included

Shadow   violin pick-up system, bridge with built in piezo, V&T controls on rib clamp (detachable)

Shadow   violin pick-up system, two transducers system.

Shadow   violin pick-up system, single transducer, 3,5 mm. socket with velcro

Shadow   violin pick-up system, two transducers, 3,5 mm. socket with velcro

Shadow Nanoflex   violin pick-up system, active eq, '0' hum bridge mount