KNA VV-3V Violin Piezo Pickup + Volume Control | Tapestry Music
VV-2 PICKUP WITH VOLUME CONTROL - Learn about violin / viola pickup | KREMONA USA | Nylon-String Guitars, Steel-String Guitars, Ukuleles - Handcrafted European string instruments since 1924
Mini Sound Pick-up Piezo Amplifier Transducer Stick Pickup for Acoustic Guitar ukulele Violin Viola Cello Banjo - AliExpress
KNA VV-3V Portable Piezo Violin/Viola Pickup With Volume Control
KNA Pickups VV-3 Violin/Viola Piezo Pickup | Better Music
Built a piezo pickup/preamp for my viola, and messing about with installing it on a cello : r/Cello