You're bidding a used unlocked OEM Toyota smart key,it has been tested and shown in good working order,a working battery is included,it comes with a new uncut key blank.This remote is required to be programmed by the dealer or locksmith before use.
Your current remote MUST say "271451-0140" on the circuit board just like the one in the picture,or it will not work. 
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2007-2009 Toyta Camry
2007-2009 Toyota Avalon