Electronic Whistle for Referee Coaches, Handheld 3 Distinct High Volume Electric Whistle with Lanyard for Referee, P.E. Teacher, Police, Outdoor Camping, Self Defense Emergency(Yellow)

Simple Handheld Electronic Whistle - The emergence of the electronic whistle liberated the mouth. It is small in size and can be placed in a pocket for easy carrying. It can be operated with one hand in an emergency. The ON/OFF key is designed. When the sports whistle is not used, turn it off, then it will not disturb or frighten others by accidentally pressing the operation key.

Multiple Timbre Options - 3 distinct tones personalized whistle for your selection. Push the side button to the desired tone, and then press the circular operation key to make a sound. It is really easy to use, whether it is an elderly or a child. For some people with shortness of breath, the electronic whistle has more advantages than a traditional whistle.

Sanitary And Durable - Electronic whistle Just click to make a sound, which is cleaner and hygienic for users. It can be reused only by replacing the battery(4 CR2032 batteries). Compared with the traditional coach whistle, it is less prone to wear and has a longer service life.

Rugged And Durable Materials - Adopt high-quality speakers and ABS plastic, the sound is clear and loud, 125 ± 5 DB, strong penetrating, whether in a noisy environment or in an open area, the sound of an electronic whistle can easily attract the attention. An electronic whistle contains a lanyard and 4 CR2032 batteries, you can hang it around your neck to prevent loss.

Widely Application Electronic Whistle - Sports events, coach, extracurricular activities, group outings, training pets, field adventures, and distress signal. Don't use it in a small space, and do not aim it at ears, so as not to cause damage to others' hearing.