Remotes sold are "Replacement Remote".Normally there is no need to set up, just put the batteries in and it is ready to use.Batteries used: 2 x AAA batteries (sold separately); Replacement remote control: WH-D1P; Compatible models: RAS-221UD, RAS-251UD, RAS-281UD, RAS-361UD, RAS-401UD, RAS-502UD, RAS-221PD, RAS-251PD, RAS-281PD RAS-281PD RAS-281PD RAS-281PD RAS-281PD RAS-281PD RAS-281PD RAS-281PD RAS-281PD RAS-2PD RAS-281PD RAS-281PD RAS-281PD RAS-PD RAS--401P D RAS-502PD RAS-221PV RAS-251PV RAS-281PV RAS-361PV RAS-401PV RAS-502PV