The Shadow SH Sonic Tuner is an automatic, chromatic soundhole tuner for acoustic instruments and can be mounted in the soundhole of acoustic or concert guitars. This incredibly discreet and easy-to-install tuner requires no drilling or milling. It includes a high-quality built-in microphone for ultimate tuning precision, even in noisy environments. The SH Sonic also comes equipped with a bright, responsive, and accurate LED display, all powered by a small 3V battery (included).

• Bright LED display
• Tune up to 1,200 times without a battery change
• Precise tuning, even in noisy environments
• Ultra discreet, only you know it's there
• Quick and easy installation without drilling or milling
• 3V battery included.