Whistle, Professional Sports Whistle with Lanyard, Very Loud Pealess Whistle Bullet Points: Rounded Surface: The dolphin-shaped whistle produces a loud and clear sound that can be heard from a long distance, making it ideal for teachers to get the attention of their students or control the classroom. The smooth and rounded surfaces of the whistle ensure a comfortable grip, with a nuclear-free streamlined appearance. 130+db Treble: The whistle is crisp and bright, producing a 130+dB treble that can be heard above ambient noise. The high decibel and strong penetrability make it ideal for teachers to get students' attention in noisy environments. Easy Usage: Our teacher whistles for adults feature an ergonomic design for comfortable blowing. The padded mouth clip prevents lip scratching while the easy-to-blow whistle produces a loud, clear sound with minimal effort. Easy Carriage: Comes with a rope for easy storage and accessibility, our Teacher Whistles for Adults are great for anyone often outdoors. Hang it around your neck or keep it in your pocket, and never worry about losing it again. A necessary companion for busy individuals. Vast Application: As an adult teacher whistle, this gear isn't limited to 1 purpose. Its loud and clear sound is perfect for lifeguards, outdoor enthusiasts, and physical education teachers. Use it for off-road racing, swim meets, or any multifunctional application where effective communication is key. Experience clear and loud sound with our Coaches Whistle. Its streamlined appearance and high decibel make it perfect for racing and sports events. The whistle is designed to not scratch lips and is easy to store. Get your hands on this tool now! Specification: Weight: about 8.3g Size: (approx.)6*3*3cm/2.36*1.18*1.18 inches Packing List: Whistle for Teachers*1