About the product
- SAVING LIVES & PROPERTY: Air moving through the device produces sound/ultrasound wave, gives deer advance warning, they may freeze on the roadside, rather than running across the road into the path of the vehicle. PLEASE NOTE: For better effect, an ultrasonic whistle needs match a sound whistle per vehicle.
- PREMIUM QUALITY & GREATER STABILITY: The set is made of quality molded ABS plastic with matte surface that endures extreme outdoor temperature. It
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