Specification: Color: Black Material: Plastic & Metal Key Type: Remote Key Case Button: 3 Button Lock / Unlock / Boot Switches: Yes Blade: Uncut,need to be cut by locksmith Battery / Circuit Board / Transponder chip: No Reference OE/OEM Numbers: 4D0837231A / 4D0837231N / 8Z0837231 / 8Z083723101C Fit For Audi: A2 2009-2005 A3 1997-2003 A4 2001-2005 A6 1997-2005 A8 1994-2009 TT 1999-2008 and any other model Package Include: 1 X Key Case 3 X Micro Switches Feature? - 3 button remote key fob case shell 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 - Ensure original keys look the same, and your existing case has the same type of battery holder otherwise will not work.