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BOSS TU-30 Tuner & Metronome


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30-Day Return Policy

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For years, the TU-80 Tuner & Metronome has been an essential tool for musicians and music educators everywhere. With the TU-30, BOSS delivers the TU-80's main features in an even more compact size. All the basics are carried over, including Accu-Pitch, multiple tuning modes, and rhythm patterns, the ability to sound reference pitches, and more. Combining trusted BOSS tuning with a versatile metronome, the TU-30 is a must-have companion for learning, practice, and performing.

  • Pro BOSS tuner and versatile metronome in one
  • Supports chromatic tuning, guitars, basses, and flat tuning
  • Convenient Accu-Pitch function sounds a tone when you've reached the correct pitch
  • Reference pitch function makes it easy to verify tuning by ear
  • Metronome features multiple rhythm styles and visual display
  • Instrument input for tuning electric guitars, basses, and other instruments
  • Built-in mic for tuning acoustic instruments
  • Runs on two AAA batteries



  • Tuner: Reference Pitch: A4 = 435 Hz--446 Hz, Tuning Range: E0 (20.6 Hz)--C8 (4,186 Hz), Internal Tuning Accuracy:+/-1 cent
  • Metronome: Tempo: 30--250, Rhythm Style: Quarter note, Eighth rest and eighth note, Eighth note, Triple, Triple with center rest, Sixteenth note, Clave (3-2, 2-3), Beat: 0--9
  • Input Impedance: 680 k ohms
  • Indicator: LCD Display, Tuning Guide LED
  • Connectors: Input jack
  • Power Supply: Dry Battery (R03/LR03 (AAA) Type) x 2
  • Power Consumption: 15 mA (Metronome mode), 8 mA (Tuner mode and A4 = 440 Hz input)

*Expected battery life under continuous use (Carbon): Approximately 50 hours (A4 continuous input). These figures will vary depending on the actual conditions of use.

  • Accessories: Dry Battery (R03 (AAA) Type) x 2, Owner's Manual, Leaflet ("USING THE UNIT SAFELY", "IMPORTANT NOTES" and "Information")

Size & Weight


  • Width: 90 mm, 3-9/16 inches
  • Depth: 60 mm, 2-3/8 inches
  • Height: 25 mm, 1 inch
  • Weight (including battery): 90 g, 4 oz

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