Usage Tips:WMT-555C Electronic Digital Tuner & Tone Generator & Metronome with Pickup for Guitar Ba Ukulele Violin Multifunctional This multifunctional tuner can work as Tuner & Metronome & Tone Generator, which is a good helper for the novices and profeionals. Try it! Features: Multifunctional design, worked as Tuner & Metronome & Tone Generator, good helper for the novices and profeionals. Suitable for chromatic, guitar, ba, violin and ukulele. Ultra large 2-color LCD with backlit provides you a better view. 3 indicator lights give distinct indication of different conditions. 2 selectable pickup modes, built-in Mic or Pickup with clip. The clip padded with soft rubber, a thoughtful design to protect your instrument from scratching. Sound back and human voice counting functions. The bracket on the back can hold up the tuner. You can adjust the volume and use earphone. Auto power off if there is not any input signal or operation in 5 minutes. Auto save settings upon power off. Tuning Accuracy Indicator: Sharp: The LCD backlit is orange, and the # red indicator will light; Flat: The LCD backlit is orange, and the b red indicator will light; In-tune: The LCD backlit is green, the green indicator will lignht and the tuner will make a sound with same frequency. Specifications: Color: Black Functions: Tuner / Metronome / Tone generator Tuning items: Chromatic, Guitar, Ba, Violin, Ukulele A4 range: 430-450Hz Flat tuning: b, bb Tuning range: A0(27.5Hz)-C8(4186Hz) Tuning accuracy: 1cent Reference tone: C: 2A-6A G: 6E 5A 4D 3G 2B 1E B: LB 4E 3A 2D 1G HC V: 4G 3D 2A 1E U: 4G 3C 2E 1A Sound tolerance: Package List: 1 * 3 in 1 Intonation Trainer 1 * Pickup 1 * Earphone 1 * User Manual (English & Chinese)