433MHz 1/2/3-Key Stairway Remote Control Switch Protocol Wireless Energy Switch Corridor Room Home Remote Lighting Remote SwitchSpecifications:Color: WhiteSize: 858514mmQuantity of keys: 1-key / 2-key / 3-keyPower supply: Micro energy acquisition and self generating(no battery)Operating frequency: 433MHzControl distance: 160m(outdoor); 30m(indoor)Control method: Pairing with wireless receiving controllerUsage: 200000 time on and offSuitable for: Bedroom, living room, dining room, kitchen, basement, garage, hallway, entryway, stairwell, attic lightingFeature:- This product is used for lights which don’t have switch or no wall switch, like pull chain light fixture, ceiling lights.- Self powered, it never needs batteries or power connection.- Easy to match with the bed room.- Each wireless smart switch has a unique identity code and will not control wrongly.- Easy installation: no wiring, you can mounts it in evrywhere in your home with sticky tape.- Waterproof, it is also good for using in the bathroom, outdoor, kitchen etc.- Emission energy is only one ten thousandth of a cell phone with no harmful radiation.- Simple design and primary color surface treatment.- No maintenance and durability.Package include:1 x Switch1 x Sticker1 x User ManualNotice:1.Please allow 1-5mm error due to manual measurement. Please make sure you do not mind before you bid.2.The colors may have different as the difference display, please understand.