Video by KNA Pickups via YouTube
Source
The DB-1 is the smart pickup solution for double bass players who need to amplify their instrument in a matter of minutes without making any modifications to their instrument.
✅ Piezo encased in wood to deliver the natural sound of the instrument
✅ Easy installation
✅ Passive — no battery needed
✅ Handmade in Europe
https://bit.ly/KNA-DB-1