This is a replacement conversion kit for the now discontinued Serta Essentials 1 or Ergomotion E4  2100 series Remote. See our other listings for other model Ergo Remotes. The new remote will be wireless. This will not work with other models. As of 2018, the original remotes have been discontinued and are now replaced with this 2 piece kit (Control box/power cord and new white remote). You will have to unplug two cords from your old control box and plug them into the new one we provide. Then, using your old power box you can plug this new unit in. We will already pair the new remote. For $70 more can purchase a 2nd remote as a back up, but only one can be programmed at a time with this kit. We do sell another kit for $50 more that would allow two programmed remotes to operate simultaneously as well as give you customized memory buttons, and one flat button. Let us know if you want to upgrade.