[Simply Plug in & Play] Work rightly out of the box, no programming or tools are required, just remotely control hard-to-reach home appliances at the push of a button on the transmitter; this wireless light switch is ideal for the elderly, and pregnant women and those with limited mobility or back pain, no more bending down; make your life easier [100ft Strong RF Signal] The strong RF signal works through walls/doors/windows, and covers a long distance of up to 100ft(30m) in open areas; no need for line of sight, this remote controller and receiver is ideal for hard-to-reach sockets and other household appliances; no interfering with other electric appliances [Compact Design Remote Outlet] This compact design expandable remote light switch kit occupies 1 wall socket only, leaving other power outlets available; smaller than most of the other indoor wireless outlets, easily installed in tight spaces and behind furniture, fitting snugly into walls; new concise design fits any room d