Compact chromatic tuner, ideal for brass band or orchestra. High-precision LCD Needle-type meter for stable tuning. Tuner accuracy, reliability and quality at an affordable price. Wide detection range allows tuning from C1 (32.70 Hz) - C8(4186.01Hz), Highly sensitive built-in mic. Select reference pitch range 430 Hz-449Hz. Calibration function supports a variety of concert pitches. Built-in high sensitivity microphone for tuning acoustic instruments. Reference tone can be produced from an internal speaker. (Sound Out). )A4/Bb4. 12 notes) C4 (261.33 Hz) - C5 (523.25 Hz) Marks provided for pure major thirds and minor thirds. Auto Power off function conserves battery life. Memory back up function. Dimensions: 4.1 x 2.52 x .6. Weight: 0.18 lbs. LCD meter. Uses AAA battery, not included.