Includes a built-in microphone for acoustic instruments and a 1/4" input jack for direct electric instrument connection. The Unofficial Martin Guitar Forum Manual & Support
Websites like or tuner.ninja provide high-accuracy tuning directly through your laptop or phone microphone without requiring a download. Why Use the AT-2 Style Today? korg at2 free
: Phone microphones pick up background noise easily, which can cause the needle to jump. Includes a built-in microphone for acoustic instruments and