Specification : Type: Flip Key Fob Case Color: Black Button: 3 Lock / Unlock / Boot Blade: Uncut Blade, need to be cut by locksmith Materials: Plastic Metal Battery : Yes (CR2032 Battery) Circuit Board / Transponder chip: No Reference OE/OEM Numbers: 4D0837231A / 4D0837231N / 8Z0837231 / 8Z083723101C Fit For Audi: For Audi A2 1999 - 2005 (8Z) For Audi A3 1997 - 2003 (8L) For Audi A4 1998 - 2001 (8D) For Audi A6 1997 - 2005 (4B) For Audi A8 1994 - 2009 (4D) For Audi TT 1999 - 2008 (8N) and any other model Package Include: 1 x Key Case 1 x Battery (CR2032) Feature: - For Audi 3 button remote key fob service repair kit. - A perfect replacement for a key with broken buttons or worn key blade. - Existing circuit board and transponder chip can be installed from your original key into the new case. - You can have the new key blade cut at your local locksmith’s. - If the original keys look the same this is the one you need.