Replacement Remote Control Commander fit for BenQ Projector No programming is required. Insert new alkaline batteries and works. Work for below BenQ Projector models: MW883UST MX720 MX722 MW632ST MX818ST MX819ST TS819ST MX822ST MW820ST MX882UST TW820ST EX7775ST MX766 MX767 MW767 MW721 MS630ST MX631ST SX914 This remote control use 2 x AAA size alkaline batteries. Package Content: 1X Remote Control(Battery not included)