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This product has been discontinued but may be available as a used item.
Picks up the vibration of an instrument for precise tuning regardless of ambient noise.
The Seiko STM-20 Clip-on Tuner Pick-up works as a complement to any tuner that's equipped with a 1/4" input jack. The microphone can be used on a wide variety of instruments and can directly pick up the vibration of the instrument without being affected by the sound of other instruments or noise.
Keep your acoustic instrument tuned in a crowd.