Rdjumpdjo 27MM Guitar Pickup Piezo Transducer Prewired Amplifier with Guitar Pickups Acoustic Electric Piezo Transducer Contact

2 Set pickup: 1 Set with gasket & 1 Set with glue block Pre-wired piezo mic save time , easy to install, convenient to use. You can attach the piezo in or on your build, drill a hole and mount the jack Drill a hole from inside the body, loosen -pin jack nut,insert it to the hole and tighten the nut Very easy to install and sounded good through several different amps, No Soldering Required, No Battery Required.With the advantage of being to interfering external sounds and not be influenced by sound reflections from nearby objects