Remotes And Keys is certain to only accept extremely high caliber products. We sell Genuine OEM products as well as aftermarket replacements. Without a doubt, the OE ones are exactly the same as the ones stocked at your local dealership parts department. Our aftermarket replacements for factory remotes are of higher quality than you could find from competitors or on other marketplaces. Rest assured, all products get tested before shipping to assure no added difficuly in programming. Smart keys are checked on testers with passive oscilloscope to verify they are functioning correctly. When products are ordered for vehicles that have onboard programming procedures, the instructions are shipped in the package. Experienced tech support staff are ready and willing to assist customers with programming. Products that require batteries include them.