1-10PCS Car Deer Whistles Avoids Deer Collisions Animal Repeller Ultrasonic Animal Whistle Warn Deer Wildlife Warning Device Description: Product Name: Animal Drive Specification and material: ABS Size: about 4 x 2 x 1.5cm Features: Convenient installation, firm and firm, with a delicate feel, odorless, concealed, and without affecting the vehicle Appearance color: black, Specifications: 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 and replaces the traditional separate deer warning whistle. 4. Simple installation: just tear off the double-sided 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. Package Included: 1xAnimal repellent