Description: Keyless Entry: The TK800 Universal Smart LCD Key with OBD supports automatic unlock when the vehicle is approached and automatic locking when leaving. It also allows for only locking or unlock, with adjustable sensing distance settings.Application: This remote key is suitable for your cars, offering click start up. Simply solder your car key chip to the new key to complete installation.Physical Button and Touch Screen: The smart car key allows operations such as locking, unlock, opening, and closing of trunk. It has a standby time of 15 days and can be used normally for 200 days with a physical key.Material and Size: Made from alloy material for durability and longevity, this Car Key measures 8cmx5cm in size, compact enough to carry around conveniently.Package Includes: Each package comes with 1 smart LCD key, providing you with everything you need to upgrade your car's security system. Specification: Material: Alloy Size Chart: 8cmx5cm/3.15inchx1.97inch Package Includes: 1Smart LCD Key Note: Please allow slightly errors 1-2cm differences due to manual measurement.