Alnicov Mini Piezo Pickup Contact Microphone Transducer with 1/4 Output Plug and 3 Meters Cable for Acoustic Guitar Violin Banjo Mandolin

Guitar Pickup Piezo Transducer for Acoustic Guitar Ukulele Mandolin Banjo Parts Easy to install,removable self-adhesive design allows you stick it anywhere on your instrument, and never cause harm to the surface of instrument Volume level adjustable,preventing noise squeal It makes your instrument produce excellent sound quality while perfectly restores the sound fidelity They have the advantage of being able to eliminate interfering external sounds and not be influenced by sound reflections from nearby objects