This key contains an embedded micro-chip called a transponder. Each transponder has its own unique code--it's the key's 'fingerprint'. When the key is inserted into the ignition and turned, the transponder is energized and broadcasts its unique code to the car's receiver in the dashboard. If the car's receiver recognizes the code, it will allow the car to start. This specific key holds a Philips 46 crypt transponder chip. This key also has a high security blade, a preventive measure against ignition picking and key duplication. Cutting and origination services for the key must be handled using a special laser cutting machine. Product Features:Replacement Key with Philips 46 Transponder Chip. Compatible with Select Acura Models.Contains a transponder chip for enhanced securityKey blade ready for cutting and pairing