4Buttons remote control 1. 4 buttons, 4 keys 2.Control rolling door, window,fireplace, security alarm system 3.Factory sell RF Remote SystemProducts Name4 Bottons Remote ControllerModel NoRFU28TypeWirelessFrequency303.875, 315, 433.92Mhz, 2.4GBOperating VoltageDC12V(A27) battery,DC3vCode typeLearning code,rolling code,fixed codeTechnical parameterASKRemote distance50-80feetPackingBlister packing, ...
