A single tone whistle is perfect for tuning chorus and various instruments instead of the common G sound. The frequency is 440Hz. Small and lightweight, convenient to carry. This is a custom made product made by Tombow Musical Instrument Corporation.
Limited edition of 500 pieces.
[Note]
Do not use for anything other than the intended purpose.
Please store out of reach of children as there is a risk of accidental swallowing.
Do not use for anything other than the intended purpose. Please store out of reach of children as there is a risk of accidental swallowing