Pack of 2 deer whistles for car and motorcycle (silver).

1. Made of high-quality material, durable and efficient to use. 2. Produces sound through airflow, no battery required, very convenient. 3. This item is designed to emit an unusual but effective sound that can be heard by animals. 4. Small and lightweight whistle system, easy to install. 5. Good animal alert whistle system suitable for cars, motorcycles, etc. Specification: Features: 1. Made of high-quality material, durable and efficient to use. 2. Produces sound through airflow, no battery required, very convenient. 3. This item is designed to emit an unusual but effective sound that can be heard by animals. 4. Small and lightweight whistle system, easy to install. 5. Good animal alert whistle system suitable for cars, motorcycles, etc. Specification: Condition: Brand New Material: ABS Plastic Color: Black, Silver (Optional) Size: Approx. 6 x 2 x 5.2 cm / 2.4 x 0.8 x 2.0 inches Weight: Approx. 30g How to Use: 1. Hold the whistle up to the light and check which one is open and which one is closed. The open one is the ultrasonic whistle, the closed one is the bagpipe. 2. Please keep the installation location surface clean and dry before installation to ensure a firm fit. 3. The open ultrasonic whistle is installed on the passenger side. The closed bagpipe is installed on the driver's side. Package List: 2 Repellents Note: 1. The environmental conditions for using a pair of whistles are that the car must be traveling at a speed of 35 miles per hour to emit wind and ultrasonic signals, which will effectively deter deer and prevent other damage to your car and animals. 2. You should check the whistle from time to time to ensure that it is still installed on the vehicle and that there is no blockage in the hole.