Professional Electronic Referee Whistle for Sports & Outdoor Safety
Ultra-loud 120dB sound output ensures clear signals in noisy stadiums, fields, or emergency situations. Durable ABS plastic construction with precision-molded airflow channels for consistent, sharp tones. Ergonomic lip-grip design reduces fatigue during prolonged use in tournaments or training sessions. Multi-sport versatility: ideal for basketball, football, volleyball referees, coaches, and wilderness safety. Weather-resistant finish withstands rain, sweat, and extreme temperatures for outdoor reliability. Compact keychain-ready size (5cm) with rust-proof metal ring for instant access during critical moments. Military-grade diaphragm technology delivers piercing sound without battery dependence. Used by professional leagues and survivalists for its fail-safe audible range (up to 1.5km).