patrick electronic whistlePATRICK ELECTRONIC WHISTLE The Patrick Electronic Whistle offers a hygenic and easy to use solution to traditional whistles. By emitting a high pitched whistle sound at the touch of a button, it greatly reduces any potential hygiene problems from sharing whistles. Made from high tensile ABS, it is also resistant to damage and features an ergnomic design to fit easily in the hand. SPECIFICATIONS: Material: ABS + PC30% Frequency: 4000Hz 500Hz Volume: