Whistle Non ‑ High Frequency Referee Whistle Nylon Hanger Contest Whistle

Non ‑ high frequency, clear and resounding, no ‑ whistle design, strong whistle permeability , high frequency and high decibel can be achieved. Double chamber design, easy to blow, double chamber professional referee trainer whistle, large volume, strong sound penetration.

nylon hanger, hanger easily through the buckle, double fixed hanger length, there is unnecessary to afraid of losing and falling. Item Type: Whistle Material: ABS Resin Weight: Approx.43g Celsius 1.5oz