Whistle 2 Pack Stainless Steel Whistles for Coaches, Referees, and Officials

Stainless steel 304 is used to craft the L4820SP whistle, ensuring its sturdiness and durability. Measuring 0.03 inches in thickness, this whistle produces a loud, crisp sound of 128 decibels, optimized at a frequency of 3.0 kHz. Weighing only 0.029 lb, the whistle can be comfortably worn for extended periods without any burden.

Included in the package are two L4820SP whistles, two mouth grips, two braid lanyards, and two storage boxes - the full accessory set for the HUTOU L4820SP-II. The natural oak bark pea within the whistle is glue-free, making it waterproof and enabling quicker rotation for an even louder sound. The 35-inch girth lanyard, 0.14 inches in width, allows users to conveniently keep the whistle close at hand during use.

To achieve the whistle's maximum volume, follow these four steps: 1) Grip the whistle with your teeth, 2) Block the whistle with your tongue, 3) Inhale through your nose, and 4) Blow forcefully while retracting your tongue.

Comparing the HUTOU whistle series, the L4820SP stands out with its stainless steel 304 construction, 128 dB sound output, and 3.0 kHz frequency. In contrast, the L5014SX model produces 125 dB at 4.25 kHz, the L5018CTJ emits 128 dB at 3.5 kHz, and the L5523CTJ reaches over 130 dB at 3.0 kHz. All whistles in this lineup are made of durable materials, with the L4820SP and L5014SX crafted from stainless steel 304, while the L5018CTJ and L5523CTJ feature brass construction.

Why choose the HUTOU L4820SP whistle? Its key features include:

Loud and Crisp Sound: Generating a powerful 128+ dB output, the L4820SP produces a clear, attention-grabbing sound.

Premium Quality: Manufactured from sturdy stainless steel 304, this whistle is built to last.

Accessory Set: The package includes a lanyard, mouth grip, and storage box, providing a complete solution.

Comfortable Wear: Weighing only 0.029 lb, the lightweight whistle can be worn comfortably for extended periods.

Wide Applications: Suitable for referees, coaches, trainers, teachers, and more, the L4820SP is a versatile tool.

In summary, the HUTOU L4820SP whistle offers a combination of loud sound, premium construction, and a comprehensive accessory set, making it an excellent choice for a wide range of professional and recreational uses.

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