USB Rechargeable Electronic Whistle – Premium Referee & Safety Tool

High-grade ABS polymer shell with precision-engineered airflow design for sharp, clear 120dB sound output; ideal for sports referees, coaches, and emergency signaling.

Built-in lithium battery supports 10+ hours continuous use; fast USB-C charging ensures quick power replenishment for intensive training or traffic control scenarios.

Multifunctional with dual-mode operation (steady light/flashing) for low-visibility environments like night exams, hiking emergencies, or construction sites.

Ergonomic one-hand grip with anti-slip silicone coating; ultra-compact (78g) fits seamlessly into pockets or gear bags for portability.

Industrial-grade waterproofing (IPX5) withstands rain and harsh outdoor conditions, making it perfect for marine sports or outdoor adventures.

Wholesale-ready with bulk pricing advantages – trusted by global sports leagues and safety organizations for professional-grade performance at unmatched value.