TOOGOO(R) Replacement Transponder Remote Car Keyless Key FOB Shell Case for PEUGEOT 2 Button 307 107 207 407 This item isn't a remote key and it is just a remote key shell case replacement. Best replacement for a key with broken buttons or worn key case. There is NO interior (remote/electronics/transponder chip)unit inside. Just cut the key blade,take the internal electronic(include immobilizer/transponder chip) from original remote and place them to our key shell,then you are ready!