Professional whistle, Fox, Sonic Blast, 120 dB, with soft surface, black color

Get rid of the classic whistles that use the classic straggler and get a FOX40 today. What makes FOX40 the best? A croak whistle creates the sound by the movement of the small feline crocus inside, alternately closing and opening the hole where the air escapes. This process produces rapid alternating sound and silence, the characteristic vibrato hiss - until the straggler sticks in the hole. The FOX40 Whistle without Crook is more like a harmonic instrument as it produces 3 slightly different frequencies simultaneously. The different frequencies are superimposed on each other, and thus alternate and cancel each other. The result is a loud, piercing vibrato whistle that has no moving parts inside to stick. The whistle is plastic from a mold and is produced by the injection method. SONIK BLAST CMG The Fox 40 Sonik Blast® CMG® is the most efficient whistle in its class Easy to whistle without the risk of over-whistling Mouth cushion made of thermoplastic material that offers great grip and safety (CMG®: Cushioned Mouth Grip) Clear loud sound, 120dB