BANSHEE™ Alarm PadlockProtect Your Boats, Trailers and PropertyThe BANSHEE™ is an alarm-equipped padlock for protecting any valuable item, boat or trailer from theft. When tampered with the alarm "scream like a Banshee" warding off potential thieves.Vibration-activated 110 Decibel Alarm Screams Like A Banshee When Activated Can Be De-Activated For Trailering Fits Most Trailer Couplers Weatherproof.WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to >P65Warnings.ca.gov.