RAK makes sure to use the highest quality components feasible. We carry both OEM and replacement products. Obviously the OEM items will be the exact same as if it was bought at the dealership parts counter. Our aftermarket replacements for factory remotes are of higher quality than you could find from competitors or on other marketplaces. We use three types of Remote Keyless Signal testers to ensure the products are functioning properly before we send it to you. Some products are checked on specific kinds of testers like smart keys. When there is onboard programming, orders are shipped with programming instructions. Experienced tech support staff are ready and willing to assist customers with programming. Products that require batteries include them.