MJ Audio MJ-400 Chromatic Tuner

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  • Regular price $3.99
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The MJ Audio MJ-400 tuner will get you tuned up and ready to perform even in loud and the least conducive environments. With a low profile and taking very little real estate on the instrument's headstock, the MJ-400 should be a keeper in your arsenal of accessories. It tunes by vibration and not by sound therefore you can tune your instrument anywhere you may be, whether it is a loud party, the local bar, or up on a loud stage. You can also keep it on at all times when playing and could be an alternate to pedal tuners for gigging musicians so you can free up a space in your pedalboard if needed.


  • Small compact size
  • 360 degree swivel capability
  • 5 Modes to support major instruments - Bass, Violin, Guitar, Ukulele, Acoustic and Electric Guitar
  • 27.5Hz to 4186Hz for maximum tuning precision
  • Simple, one button operation. Simply click the button to cycle modes, and power on/off.
  • Brilliant LCD screen changes color when you're in tune.

  • Fit for : Acoustic Guitar, Electric Guitar, Bass Guitar, Violin, Ukulele, Oud, Cello, Viola.
  • Power: CR2032 Battery 1 piece (inclued)
  • Color: Black
  • Size: 4.8cm x 7.3cm x 2.8cm
  • Material: ABS
  • Detection Range: 27.5Hz ~ 4186.00Hz
  • Pitch Range: 440Hz
  • Tunning Way: Clip 
  • Weight: 23g