WHOLESALE 2 PACK SONIC DEER WHISTLE Emits ultrasonic sounds that are inaudible to humans. Begins working at 35 MPH Includes keys that can be inserted into the whistle to disable. Greatly reduces the risk of animal & auto collisions. Alearts animals up to 1/4 mile away. Mounts easily with adhesive backing. Fits trucks, cars, SUV's, motorcycles, and vans.
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