1.AD 900 Key programmer 2.Version:2.21 3.New function ... (60-68). New function: 4D pincode explanation function.Function Two:Support on copying these transponder: 13,33,T5,40,41,42 ... explanation.Function Five:AD900 come with the Hitag 2 function.Support on programming the transponder key and remote for Audi A8 ... , E92 EWS3, EWS3+, EWS4, CAS, CAS2, CAS3. car key programmer AD 900 Key programmer