AT-311 Guitar Tuner (1 x CR2032)
Model: AT-311 - Tuning mode: 6-string guitar - Measuring range: A0 (27.5Hz)~C8(4186.0Hz) - Tuning: clip - Pitch range: 440 Hz - Detection accuracy: +/-0.5 cent - Powered by 1 x CR2032 battery (included) - Comes with Chinese/English manual