The Champion Sports Electronic Hand Whistle is a versatile and powerful signaling device that offers a range of customizable options. With three volume and three tone settings, you can easily adjust the whistle to suit your specific needs and environment. The push-button activation ensures quick and easy use, while the adjustable wrist lanyard provides a secure way to keep your whistle easily accessible. The directional sound feature allows you to focus the sound in the desired direction, ensuring your signal is heard by the intended audience. Powered by three AAA batteries (included), the Champion Sports Electronic Hand Whistle is a reliable and effective tool for referees, coaches, lifeguards, trainers, police officers, and individuals seeking a versatile signaling device.