Korg

KORG's revolutionary new tuner, The Rimpitch, is a unique tuner that you use by attaching it to the sound hole of your acoustic guitar. It provides an incredibly convenient viewing angle, since you can see the tuning meter within the natural angle of your sight. With a compact size, it's visually unobtrusive since it fits inside the guitar's sound hole and is easy to fit and remove.

• Attach inside the sound hole and tune with a natural line of sight
• Fits a variety of acoustic guitars
• Piezo pickup rapidly and accurately detects the sound
• High-brightness LED for excellent visibility

Specs:

Scale: 12-note equal temperament
Range (Sine Wave): E2 (82.41 Hz) E7 (2,637.02 Hz)
Precision: +/-1 cent
Reference Pitch: 440 Hz
Dimensions W x D x H: 79 x 32 x 17 mm / 3.11 x 1.26 x 0.67 inches
Weight: 13 g/ 0.46 oz. (including battery)
Battery Life: Approximately 12 hours (Tuner continuously operating, A4 input)
Installable Size: Circular sound hole of diameter 100 mm +/- 3 mm
Accessories: CR1620 lithium battery (3V) x 1 (for verifying operation)