Function Warns wildlife away from you, only animals can hear the alert Hardware Includes self-adhesive tape on bottom or mount with screws Unit & Package Sold by pair, carded for display Part No. Description 81990 Black 81991 Chrome Part No. & Image Selection Ultrasonic Animal Alert Part No.: -- Please Select -- 81990 81991 Combination of product variants is not available Updating... Related Products Door Lock Knobs with Crystal on Top Letter Cut Outs 2 Lighted Bumper Guides in Watermelon Style Stainless Steel Air Cleaner LED Light Panel Front Mount Universal Front Hub Caps with Iron Cross Chrome One Piece Rear Light Bars with 4″ (6) Round Lights