MAKINGTEC Electronic Whistle for Teacher Coach Referee

🔊3 VOLUME & TONE OPTIONS - Featuring 3 adjustable tones and volume levels, this high volume electronic whistle meets various needs. Ideal for teachers, referees, and coaches in sporting events, pet training, and outdoor emergencies. 💪DURABLE & LONG-LASTING - Made of high-quality ABS, the electronic whistle is streamlined, compact, crack-resistant, and fall-resistant. Includes 4 CR2032 batteries for extended use; replace batteries if sound becomes abnormal.