Updated Tuning Mic for Korg Tuners The Korg CM400 contact microphone is intended for use with compatible Korg devices like the TM-70 tuner/metronome handheld combo. By mounting the microphone on your instrument and connecting to the tuner via a simple audio jack, Sweetwater musicians have found that the CM400 provides enhanced intonation accuracy for pitch-perfect adjustments before or during your gig.
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