Specifications: The smart lock key adopts one-button operation, which is convenient to use. Made of ABS, the key is lightweight and easy to carry. It has function of anti-theft, which ensures the safety of your car. Item Name: Anti-theft Key Material: ABS, Electronic Components Model: KQS-Q4 Working Voltage: 12V ± 3V Working Frequency: 125KHz Features: Convenient to Use, Easy to Carry, Anti-theft Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. It will automatically enter the anti-theft mode after 15 seconds of parking and turning off. After entering the anti-theft system, the ID card must be applied and placed in the sensor position to sense it before it can be used normally, otherwise the car cannot be started. Package Includes: 1 x Car Engine Push Start Host 1 x Start and Stop Button 1 x RFID Sensor Ring 2 x Keys 2 x Wires 1 x User Manual