Description: Brand: ROWIN Name: Tuner Sound-checking Items: Folk, Guitar, Bass, Ukulele, Violin, 12-tone Pickup Way: Clip On The Instrument Vibration Pickup A4 Frequency: A4 = 440Hz Sound Range: 0A(27.5Hz) ,8C(4186.01Hz) Product Features: Sensitive Sound, Two-color Backlight, Exquisite Atmosphere, Clip-on Backlight Tuner, Exquisite Workmanship, Color Screen Specifications: 1. Suitable For A Variety Of Musical Instruments, Twelve-way Rhythm, Guitar, Violin, Ukulele 2. In G (guitar) Tuning Mode, Short Press The FLAT Key To Switch And Drop A Half Tone/full Tone 3. In G (guitar) Tuning Mode, Short Press OPENTU Key To Switch, Four Special Tuning Modes 4. Fast And Accurate Sound Calibration, Built-in Buzzer Pickup, Non-interference Sound Calibration 5. When The Tuner Is In All Modes Other Than The Twelve-average Law, When Checking The Tone, Plucking The Strings To Be Checked, Please Calibrate The String Sequence Of The Strings Before Starting To Calibrate The Pitch. Package Included: 1 * (1 tuner)