Features: Produces two separate and unique frequencies to warn animals awayHigh output airflow activatedCan conveniently be removed from base for cleaning and driving through car washesMounts easily with high bond adhesive tape (included)Protects those at risk for vehicle-animal collisionsSpecification: Material: ABSColor: black, black + silverSize: 6*2.5*4cmPackage includes(without retail package):2 deer repelling toolsfeatures: 1. Animal protection: made of ABS plastic, durable and waterproof. It can warn deer and other animals of vehicles coming in front, prevent them from being hit by vehicles and reduce injury.2. Working principle: when your car is running at the speed of 30 kilometers per hour or faster, the whistle will automatically make a sharp sound to urge the deer to leave quickly.3. Compact dual structure: the whistle has dual structure and single installation. This small whistle is easy to hide and replaces the traditional separate deer warning whistle.4. Simple installation: just tear off the double-sided tape at the bottom and stick the whistle on the front bumper, rearview mirror or any flat place.5. Wide scope of application: applicable to all brands of cars, trucks and motorcycles. It is very suitable as a gift for people who often travel in the wild.Specifications Material: ABSSize: about 5 * 4 * 1.2cmFeatures: it is easy to install, firm and firm, feels delicate, odorless, hidden and does not affect the appearance of the vehicleColor: black, transparentPackage includes:2 x car alarm