Features: Full metal shell makes it durable and exquisite. A4 button for pitch adjustment. Flat button for flat tuning. Screen displays note name, tuning meter, calibration, pitch, and flats. Output jack: 1/4" mono audio jack for signal output. Input jack: 1/4" mono audio jack for guitar connection. True bypass footswitch design. How to Use: Connect a DC 9V power supply to the pedal. Link the input, then turn on the tuner by pressing the ON/OFF button. To change the pitch, press the A4 button. The pitch ranges from 430Hz to 450Hz. For tuning by flat notes, press the Flat button. Four steps available: b, bb, bbb, bbbb. Play a single guitar note; the note name will appear on the tuner screen. The screen color will change, and the tuning needle will move. Center blue tuning meter and two blue triangles: note is in tune. Left red tuning meters and left blue triangle: note is flat. Right yellow tuning meters and right blue triangle: note is sharp. The tuner has a bypass function. After tuning, press the ON/OFF button to ensure the original guitar signal passes through without distortion. Specifications: Model: AROMA AT-07 Material: Aluminium Alloy Tuning Mode: Chromatic Pitch Range: 430-450Hz Flat: b, bb, bbb, bbbb Tuning Tolerance: ±0.5 cent Power Supply: AC Adapter 9V DC (not included) Item Size: 9 x 3.8 x 4.8 cm / 3.5 x 1.5 x 1.8 in Item Weight: 131 g / 4.6 oz Package Size: 12 x 7 x 6.5 cm / 4.7 x 2.7 x 2.5 in Package Weight: 223 g / 7.8 oz Package List: 1 x Chromatic Tuner 2 x Adhesive Tape 1 x User Manual (English & Chinese) 1 x Hardcover Box
