Features: It takes approximately 20 seconds to complete one key programming. This device can be securely used for 4D and smart key anti-theft systems without damaging the vehicle's anti-theft system. It is the fastest and safest tool available for key programming in the event of all keys being lost. It is safe for the vehicle's security alarm system. Supports various smart key systems and is compatible with K-line and CAN-BUS protocols. Supports programming when all keys are lost. Please read the operation instructions and important notices before programming a key. Specifications: Material: ABS Size: As shown Note: 1. Must use a compatible new smart key and follow the correct procedure; otherwise, you assume all risks. 2. If the device matches the key and the LED light remains constantly lit, clear the error code using an appropriate anti-theft system tool. 3. After programming, the key may start the vehicle but the SEC light remains on; this may indicate use of a secondary key, as only the primary key can manually exit learning mode. 4. Do not attempt to open the cover of the programmer or dashboard; doing so may result in damage and void warranty. 5. This device is intended solely for legal automotive repair purposes. Unauthorized use is prohibited and may result in liability. Package includes: 1 x Smart Key Programmer