This is a high pitched penetrating pealess whistle with a modulating frequency that makes it very user friendly. Change your whistle volume as needed without sacrificing power and control with this intense, shrill whistle tone.

FEATURES
• 2 wind chambers create an intense & shrill tone even when blown more gently
• Pealess
• Adjustable frequency without sacrificing attention or control
• Available in classic black
• 119 dB

MATERIAL
• Plastic