Mandolin external pickup. The same unit at the internal pickup, only this one mounts on the top of the mandolin behind the bridge and has a Carpenter jack included which clamps to the side of the instrument. This pickup does not require fitting a new bridge.
The disc piezo transducer is light weight & highly resistant to feedback. It is simple to install (professional installation recommended) The ¼" endpin jack is included and requires a 1/2" mounting hole, professional installation recommended. . A Preamp is recommended.