Electronic Whistle USB Charging Sports Training Referee Whistle
High-grade ABS plastic construction for durability and lightweight handling. Precision-engineered sound chamber delivers sharp, clear tones up to 120dB for maximum audibility. USB-rechargeable lithium battery (included) with 8-hour continuous runtime—eliminates disposable battery waste. Fast-charging via any USB port (cable included). Multifunctional use: Ideal for referees, coaches, sports training, emergency signaling, traffic control, and outdoor survival scenarios. Weather-resistant design performs in rain or extreme temperatures. Sleek, portable clip-on design with anti-roll shape. Includes adjustable neck lanyard for quick access. Bulk pricing available—stock up for teams, events, or resale. Globally compliant with CE/FCC safety standards. *Note: Whistle ships pre-charged and ready for immediate use.*