Etekcity 3-Channel Programmable Wireless Remote Control for wireless light switch outlet plug socket: This additional or replacement remote control works with Etekcity self-learning outlet switch sets- 3 buttons. These outlets/sockets/wall plugs are the newest/smaller version, and this is the first and only version allowing you to program each button/code. Life changing technology for the immobile. Works through doors, floors, and walls. Great for lamps, lights, power strips Remote control for replacement or addition to Etekcity self-learning outlet switch sets  3 buttons Works with one or more outlets paired to each channel 100ft (30m) range (works through doors, floors, and walls) Quick and easy to add to your outlet set Digital remote operation  no interference with other electronics