AD-35 Mini Sound Pick-up Piezo Amplifier Transducer Stick

Features:
A professional piezo contact microphone pickup with volume control.
Contact microphones pick up sound by being in direct contact with the sound source.
They have the advantage of being able to eliminate interfering external sounds and not be influenced by sound reflections from nearby objects.
Just plug it into your amp, bass amp or other recording equipment.
You can amplify the voice of your guitar, mandolin, banjo, violin, ukulele, viola, cello, etc.