RAK makes sure to use the highest quality components feasible. 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. All remotes are tested on 3 different types of Keyless Entry Testers before they are shipped to you. Specific items are tested on special testers configured for special modes like passive smart key analysis. When there is onboard programming, orders are shipped with programming instructions. Free expert tech support is included with purchases. Batteries are always included with products that use batteries.