Emits A Combination Of Fluctuating Sonic Waves, Ultrasonic Waves And Led Flashlights To Deter Pesky Animals From Entering Your Vehiclesimple 2 Wire Installation Under The Hood To Vehicle Battery To Provide Power To The Device; Easy To Mount With Included Zip Tieslow Voltage Protection, Automatically Stops Working To Protect The Vehicle Battery When Battery Voltage Drops Below 10.5venergy Saving, Auto Standby To Save Battery Power When The Car Is Started, Automatically Resume Work 20 Seconds After The Car Is Parkeddesigned For Vehicles But Can Be Utilized Almost Everywhere Such As Garage, Attic, Barn Where A 12 Or 24 Volt Battery Is Available Keeps Unwanted Animals Away From Your Car Rats, Mice, Squirrels, Martens, Chipmunks And Other Destructive Rodents Often Shelter Under The Hood Of Vehicles And Damage Wiring Harnesses, Cables And Other Expensive Parts. Loraffe Under Hood Animal Repeller Emits Sonic And Ultrasonic Waves That Cause Their Intense Auditory Stress And Flashing Lights That Target Their Eyesight To Create A Hostile Environment Under The Bonnet For Animals Or Pests To Live, And Force Them To Move On And Escape From Your Car. How It Works The Ultrasonic Rodent Repellent Works In Cycles. During Each Cycle, Sonic Waves, Ultrasonic Waves And Led Flashlights Will Be Emitted Alternatively Or Simultaneously. The Sound Frequency Will Constantly Change So That Animals And Pests Don? ?t Get Used To The Same Sound Being Produced. The Sonic Waves Can Be Heard By Human. The Ultrasonic Waves Are Silent To Human Ear. Humane And Non-toxic Safely Repel Unwanted Animals Without Harming Them; No Chemicals, Traps Or Exterminator Needed. It Is Safe To Your Automobile The Ultrasonic Rodent Repeller Runs On Vehicle Battery And Will Not Affect The Functionality Of Engine Or Other Parts In Your Car. *note: Although This Product Is Designed To Automatically Stop Working When Battery Voltage Drops Below 10.5v To Protect Your Car Battery From Draining, The Minimum Voltage Needed To Start A Car Engine Varies From Car To Car. If Y