Type: piezo (PVDF-film)
Preamp: built-in (needs phantom power)
Two paper thin piezo- (PVDF-)film sensors are attached to the bridge (or belly) with double sided adhesive tape. The sensors are connected to a small and lightwight preamp, which is attached to the strings below the bridge. The preamp doesn’t work with batteries, but needs phantom power. Comes with 15′ cable.