Features: ?Safe Material?This double-tube high-frequency whistle is made of aluminum alloy material, which is very sturdy and durable. Even if it falls to the ground, it is not easy to be damaged. ?Loud Volume?In general, the aluminum alloy whistle can produce 120 decibels of addictive, even if you stand far away, you can still hear the crisp sound from a long distance. ?Multipurpose?This titanium whistle is suitable for different outdoor sports like hiking, camping, boating, and racing. Also a good companion for travel and pet training. ?Featured Design?This double-tube titanium whistle weighs only 12g, is very light, you can hang it on a key chain or backpack, perfect size, fashionable and practical. ?Waterproof Ability?With excellent airflow design, this double tube titanium alloy whistle can be used in a variety of complex environments, such as rainy, and wet weather. Specification: Size: 55*15*8mm\2.17*0.59*0.31in Color: Gold/Silver/Black Product List: High-frequency outdoor survival whistle*1 Notes: 1. Due to the lighting effects and angles, there is a color difference in the product, please understand. 2. Due to manual measurement, there is a tolerance in the product size. Shipping is only to the lower 48 states, USA. But? If you are outside the USA you may purchase if your country participates in's Global Shipping Program. Bid with confidence; we are Experienced sellers for over 23 years. Ships from Washington, DC. Tracking included in ALL orders. NO local pick-up option. Preguntas? Adelante! Hablamos Español. (KA044)