Boss TU-01 Clip-On Chromatic Guitar Tuner


  • $24.99

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Boss TU-01 Clip-On Chromatic Guitar Tuner

Ideal for guitar, bass, and ukulele, the clip-on Boss TU-01 is the most affordable tuner in the trusted BOSS lineup. Small, durable, and simple to use, it provides convenient, reliable tuning right on your instrument's headstock. A bright, attractive display features a cool digital meter and note indicator, plus two lights that show when you're perfectly in tune. The TU-01 also adjusts for different viewing angles and folds down for easy transport in your case or gig bag.

Trusted BOSS quality in an affordable clip-on tuner.


  • Renowned BOSS tuning quality in an affordable clip-on tuner
  • Features Chromatic, Guitar, Bass, and Ukulele tuning modes
  • Convenient reference pitch function (A=440 Hz)
  • Runs for up to 25 continuous hours with a CR2032 lithium battery
  • Auto off function to preserve battery life when the tuner is not in use


  • Tuning Range: A0 (27.5 Hz)--C8 (4,186.0 Hz)
  • Reference Pitch: A4 (440 Hz only)
  • Tuning Accuracy: +/- 1 cent
  • Control: Power switch / Mode switch
  • Display: Backlit LCD
  • Power Supply: CR2032 lithium battery x 1
  • Current Draw: 6 mA
  • Expected battery life under continuous use: Approx. 25 hours * These figures
  • Auto off function: Approx. 7 minutes
  • Shipping Weight: 0.25 lbs
  • Shipping Dimensions: 3 x 2 x 2 in

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