This electronic whistle is made of , which can withstand use. Features the ABS, electronic components and magnet material, which has high durability, not easy to deform. Fine workmanship, practicality. This electronic whistle will make sports and outdoor activities easier and smoother. Features - Color: Blue -Material:ABS, electronic components, magnet - Size: 14.00X4.30X3.30cm/5.50X1.69X1.30in Battery: 6F22 (not included) Sound: 120-150dB - Suitable for referees, trainers, tour guides, adventurers, travelers, cheerleaders, traffic guides, teachers, the elderly and so on. - Perfect for traffic control and lifesaving, , sports competition and training and hat training. - In addition, it has a loud, crisp sound. You can use it easily and effectively in any situation. - Multipurpose design, this electronic whistle can be also used as a . - The sound is loud and crisp, you can quickly catch the crowds' attention anytime you want. Package list: 1 x electronic whistle 1 x manual