2-Way Boat Alarm SystemProtects your boat and valuable equipment from theft.Features:Shock Sensor Detects IntrudersAlerts you up to 3000 Yards when ActivatedTwo Way Remote Alerts with Sound, Light & VibrationUp to 3000 Yards Response and 1000 Yards Transmit128 db Alarm HornWaterproof Main EngineShock Sensor with Sensitivity AdjustmentEasy InstallationWARNING: 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.