Amazon.com: Intellitouch Contact Microphone Pick-Up for Tuners : Musical Instruments
Eckroth Music - Korg Clip On Mic For Korg Tuner
YAMAHA YAMAHA YAMAHA TM-30BK Tuner Microphone TM-30BK Clip-type microphone that transmits vibrations directly to the tuner by attaching the microphone to the instrument. - want.jp