Feature 1, Press the button (lock) once, the indicators flash once, the doors will be locked and the window close up automatically. 2, Press the button (unlock) once, the indicators flash once and the doors will be unlocked 3, Press the button (trunk release) about 2 seconds long . The indicators flash 3 times , after that the lock of boot will be released. 4, Multi-level security arming and high reliability. 5, It can be used in different types of cars.Features: Press the button (lock) once, the indicators flash once, the doors will be locked and the window close up automatically. Press the button (unlock) once, the indicators flash once and the doors will be unlocked Press the button (trunk release) about 2 seconds long . The indicators flash 3 times , after that the lock of boot will be released. Multi-level security arming and high reliability. It can be used in different types of cars. Comes with 2 remote controls, wiring harness and etc. Specification: Material: ABS + Metal Color: Black Item Type: Alarm Systems & Security Voltage: 12V External Testing Certification: CE Type: one way Frequency: 433.92Mhz Control Distance: 50m ~ 100m Operating Temperature: -25 ~ +80 Remote: 2Pcs Remote Control: flip key Package Weight: approx. 240g Function: 1. Lock /Unlock/Disarm 2. Car finding 3. Trunk release 4. Vehicle locator 5. Window lifting 6. Electric interlock 7. LED indicator Package list: 1 * Main Control Unit 2 * Remote Control 1 * Set of Wiring Harness 1 * User Manual