1. This smart car key replaces for CHR 20182020, which can fit your car well. 2. Color numbers, parameters and specifications are customized based on the original factory and will be fully matched to your car. 3. This smart car lock has three buttons that support controlling the door lock, unlock and horn, which can meet your needs. 4. This smart car key is made of high quality ABS material, which has a long service life. 5. The car key is as sensitive as the original factory and even feels better than the original factory. Specifications: Item Type: Car Key Material: ABS Purpose: replacement, spare part, etc. Frequency: 314.3MHz Button quantity: 3 x button (car door lock, unlock, horn switch) Battery: button battery, CR2025 x 1, 200 mAh, (built-in battery shipped) Fitments: Replacement for CHR 2018 2020 Package List: 1 x Car Key 1 x Cover