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BOSS TU-10 Clip-On Chromatic Tuner Black Best Guitar Tuner with Accu-Pitch Function, Flat Tuning up to 5 Semitones, and Stream Mode


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The BOSS "TU" line is synonymous with reliable, roadworthy and accurate tuning. Today, the world's most famous tuner prefix gets "clipped-on" with the debut of the TU-10. Reinventing the traditional image of clip-on tuners, the TU-10 offers a stylish design and robust body with high-performance features derived from other BOSS tuners, such as Accu-Pitch, flat tuning up to five semitones, and Stream mode. A unique feature - the "true color" LCD - provides a full, multi-color visual experience not seen before in other clip-on tuners. In addition, the reflection-display function dramatically improves visibility.

- Proven BOSS quality and reliability in a clip-on format
- Dramatic advancement of visibility with unique "true color" LCD and reflection-display function
- Accu-Pitch function, flat tuning up to 5 semitones, and Stream mode
- Stylish design and robust body
- Available in a variety of colors



1. What battery does the BOSS TU-10 use?

  • The BOSS TU-10 uses a single CR2032 lithium battery.

2. Can the BOSS TU-10 tune a 7-string guitar’s low B string?

  • Yes

3. Does the BOSS TU-10 work on bass?

  • Yes.

4. How wide does the BOSS TU-10 clip open?

  • Around 1 ⅛’’ (25-30mm).

5. Does the BOSS TU-10 display “cents”?

  • Yes.

6. Does the BOSS TU-10 shut off automatically?

  • Yes.

7. Can the BOSS TU-10 do a drop D tune on a bass?

  • Yes.

8. Can the BOSS TU-10 do a drop D tune on a 5-string bass?

  • Yes.

9. Will the BOSS TU-10 work for a left-handed guitar?

  • Yes, but it might be hard to view.

10. Does the BOSS TU-10 work on a ukulele?

  • Yes.

11. Does the BOSS TU-10 work with an electric guitar?

  • Yes.


  • Tuning Range: C0 (16.35 Hz) to C8 (4,186 Hz)
  • Reference Pitch: A4 (436 to 445 Hz)
  • Tuning Accuracy: +/- 1 cent
  • Display Mode: Cent display, Stream display
  • Flat Tuning: Regular to 5 semitone lower
  • Power Supply: CR2032 lithium battery x 1
  • Current Draw: Color display mode: 12 mA, Monochrome display mode: 4 mA
  • Expected battery life under continuous use:
  • Color display mode: Approximately 12 hours
  • Monochrome display mode: Approximately 24 hours *This figure will vary depending on the actual conditions of use.
  • Accessories: CR2032 lithium battery, Owner's Manual

Size & Weight

  • Width (W): 73 mm (2-7/8 inches)
  • Depth (D): 33 mm (1-5/16 inches)
  • Height (H): 62 mm (2-1/2 inches)
  • Weight: 45 g (0 lbs. 2 oz.)

*All specifications and appearances are subject to change.

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