Whistle Product Description: Why Choose Us?

Sturdily Built: Crafted with thick, high-quality stainless steel 304 measuring 0.03 inches in thickness, this whistle is built to last.

Loud and Crisp Sound: Optimized to produce a powerful 128-decibel sound at a frequency of 3.0 kHz, this whistle delivers a loud, clear tone.

Comfortable to Wear: Weighing only 0.029 lbs, the whistle can be comfortably worn for extended periods without causing any burden.

Appropriate Size: The moderate size of the whistle makes it suitable for use by most people.

Package Includes: - 2 x L4820SP whistles - 2 x Mouth grips - 2 x Braided lanyards - 2 x Storage boxes

Natural Wooden Pea: - Made from oak bark with no glue, providing a waterproof, lightweight design that can rotate quickly to generate a louder sound.

Lanyard Included: - 35-inch girth and 0.14-inch width, allowing you to easily hang the whistle around your neck during use.

Mouth Grip: - Fitted with a comfortable mouth grip to protect your teeth while blowing.

Convenient Storage Box: - Measures 3.5 x 2 x 1.15 inches, with a separation design for easy organization and portability.

How to Use the Whistle: 1. Grip the whistle with your teeth. 2. Block the whistle with your tongue. 3. Inhale through your nose. 4. Blow hard while retracting your tongue.

Whistle Comparison:

Model L4820SP L5014SX L5018CTJ L5523CTJ Price $5.99 $8.99 $9.99 $16.99 Material Stainless Stainless Brass Brass Steel 304 Steel 304 Surface Polished Ti-Rainbow Ti-Gold Ti-Gold Length 1.88 in 1.91 in 1.97 in 2.16 in Width 0.72 in 0.55 in 0.63 in 0.76 in Height 0.83 in 0.55 in 0.71 in 0.90 in Weight 0.029 lb 0.022 lb 0.037 lb 0.06 lb Sound Decibel 128 dB 125 dB 128 dB 130+ dB Sound Freq. 3.0 kHz 4.25 kHz 3.5 kHz 3.0 kHz

In summary, the HUTOU L4820SP whistle offers a powerful 128+ decibel sound, is made of durable stainless steel, and comes with a complete set of accessories for convenient, comfortable use. It's an excellent choice for referees, coaches, trainers, teachers, and more.

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