This is a Genuine Replacement for a Serta Motion Essential 2nd Gen Linak Adjustable Bed Base. This model only works with the generation that matches the picture exactly so to be sure we send out the correct remote we ask that you provide your information found on the processor box under the adjustable base. Since 2023 the white remote has been replaced by the manufacture with the black remote. All Functions will remain the same except the flat and lounge button