Make your acoustic guitar sound as great plugged in as it does unplugged! The Seymour Duncan SA-6 MagMic is a hum-cancelling soundhole pickup that doesn’t just sense the strings, but also includes an omnidirectional microphone to pick up the vibrations of the instrument itself. This pickup includes a preamp, and can either be installed permanently or with no modifications to your instrument- you decide. It includes a volume knob and a blend knob for the internal microphone.