Feature●Clip-on type. Detecting tone by vibration. Small but accurate. Useful in noisy enviroment. Highly sensitive.●Rotates 360 degree for viewing from any angle.●Multi-instrment modes. Guitar, Violin, Ukulele, Bass. Chromatic mode for other instruments like Mandolin or Banjo.●Auto turn off in 3min without operations. A4 calibration: 440Hz. FCC/CE certified, RoHS compliant.●What you get: 2*mini guitar tuner, 2*2032 coin battery,1* manual and 12-month warranty.Description