A. The product for sale is a DIY remote control key. It operates at a frequency of 315MHz and is equipped with an ID46 PCF7953 chip. B. This key consists of a key shell, a circuit board, a chip, and a battery, making it a complete remote control key. C. Before purchasing, it is advisable to check the chip frequency, FCC number, or part number, as well as the shape of the key blade. D. You may use this key and have the key blade cut at a local automotive locksmith. Product Condition: A. Product Type: Smart Remote Control Key B. FCC Numbers: M3N5WY8609, 812A - 5WY8609, 164 - R8092, 164 - R8094 C. Product Numbers: BT4T - 15K601 -, BA1T - 15K801 - AX, BT4T - 15K601 -, BT4T - 15K601 - D. Number of Buttons: 5 buttons E. Chip: ID46 PCF7953 chip F. Frequency: 315MHz G. Key Blade: Available (HU101) H. Circuit Board: Available I. Battery: Available Compatible Vehicle Models: A. 2013 - 2018 Edge B. 2013 - 2019 Escape C. 2013 - 2018 Expedition D. 2011 - 2017 Explorer E. 2013 - 2018 C - max F. 2013 - 2019 Taurus G. 2013 - 2019 Flex H. 2012 - 2019 Focus I. 2013 - 2016 MKS J. 2013 - 2019 (The original English did not specify the vehicle model here) K. 2012 - 2015 MKX L. 2015 - 2017 Navigator Color: Black Material: ABS + Metal Package Contents: A. 1 automotive remote control key The package includes mainly the above - mentioned content and may not include other products. Notes: Light reflection and different displays may cause some differences between the color of the product and the actual item. A measurement error of +/- 1 - 3 cm is acceptable.