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.






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5.0
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1***m

Helpful (3)
The clothes are cute and comfy. Fit well. Only regret is they ship slow.
Sep.01.2024

Helpful (3)
Sep.01.2024
1***m

Helpful (2)
Purchased two bathing suits, unfortunately no enough support for me but the delivery was super efficient and return was easy peasy. I would definitely recommend OKWISHING to others as I've purchased other items and have been completely satisfied.
May.15.2024

Helpful (2)
May.15.2024
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Electronic whistle USB Charging Sports Training Referees Electronic Port Traffic Exam Seeking Lighting Portable Portable
$18.21
category:
The fifth -generation USB direct rush to the green band photos of the light
The fifth -generation USB direct rush to the orange lamp
The fifth -generation USB direct rush to the purple belt photos of the light
The fifth -generation USB direct rush to portable black belt photos light
The fifth -generation USB direct rush to the blue belt light light
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