Blue Sport Electronic Whistle Size:One size Removable comfort liner with D3O

Removable comfort liner with D3O smart material and knee cut out

then sip from any side

ergonomic tread pattern provides better grip for hands and feet

Size: 28/16

Dual mesh cup panel for maximum ventilation

Blue Sport Electronic Whistle Size:One size Removable comfort liner with D3OThe Blue Sport Electronic Whistle is a game changer for referees and coaches alike. With its electronic design, this whistle eliminates the need for blowing, ensuring consistent sound levels and reducing the risk of germ transmission. It offers multiple sound modes, including a standard whistle tone and a loud alarm, providing versatility for various sporting events and training sessions. Compact and lightweight, it's easy to carry around the field or