Car security alarm for vehicles with sensitivity control, 12V vibration detector1、7 Level Sensitivity: This alarm set has 7 level sensitivity for you to adjust, the 7th is the highest sensitivity so you can adjust it according to your needs. 2、Car Search Function: You can press the \"mute\" or \"bell\" button and the sounds 30 seconds and you can press any button to stop. 3、A full Accessory Set: This alarm set includes a complete set of tools required for. 4、You can press the learning code switch on the main unit inside, and press any button on the remote, the alarm will sound once, indicating that the learning code is successful, and the second remote learn code as first one. 5、Wide Applications: This alarm set can be installed to most 12 V direct current car and has a wide applications.