[brown |  silver]

[Braun]

The dragonfly whistle is carefully tuned to suit each and every use of the long production technology of reed musical instruments.
Best of all, its portable and easy to use when you are tuning each instrument.
While you ring the tune whistle, rotate the screw of the string you want to match, and adjust the sound to match both sounds.

From the Manufacturer

Tombo Chromatic Whistle - Tuned Whistle A Scale for Japanese Musical Instruments

P-13A

It has 13 holes and when blowing from each hole, it will produce a pitch that corresponds to the hole.

Often used for Japanese instruments

• 13 notes
• A = 440Hz
• A = 220Hz
• A Scale

It is often used in the sound of Japanese instruments.