Product Name: Unidirectional Car Alarm System Suitable for: Universal for 12V cars, regardless of model Alarm Trigger Method: Vibration, side door Alarm Mode: Sound and Light Alarm Alarm Volume: 120dB Frequency: 370MHz Remote Control Range: 80-100 meters Power Supply Voltage: 12V ...Product Name: Unidirectional Car Alarm System Suitable for: Universal for 12V cars, regardless of model Alarm Trigger Method: Vibration, side door Alarm Mode: Sound and Light Alarm Alarm Volume: 120dB Frequency: 370MHz Remote Control Range: 80-100 meters Power Supply Voltage: 12V PACKAGE INCLUDED: Host unit x1 Ignition relay x1 Vibration sensor x1 Remote controls x2 Wiring harness x1 Color packaging box x1 Horn x1 Instruction manual x1.