Feature: 1. The car key's reference OEM number is PCF7961M, which can match your car well. 2. Made of high quality ABS material, this smart car key can be used for a long time. 3. With the characteristics of oil resistant and corrosion resistant, this smart key is durable to use. 4. Through perfect manufacturing, the car key can provide stable performance. 5. This 3 button key is a perfect replacement, which can directly replace the old or broke one. Specification: Item Type: Car Key Material: ABS OEM: PCF7961M Purpose: Replacement, Spare Frequency: 433MHZ Buttons: 3 (Car Door Lock, Unlock, Trunk Lock) Battery: Button Battery, 1 x CR2025, 200mAh, (Built-in Battery Shipped) . Package List: 1 x Car Key Note: 1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks! The remote key needs to be programmed by a qualified locksmith in order to be programmed. There is no manual method for users to do it themselves. Please consult some locksmiths in your area to make sure they will reprogram one of the keys for you.