Features:-4 Ports ON/OFF Digital Wireless Remote Power Switch. -This product uses paring coding 、 ultra high frequency encryption eliminates environment interference. - Remote control range is up to 50 meters、 not obstructed by walls、 capable of connecting any loads. - Remote controller and switch can be used simultaneously for ease and flexibility Installation instruction: -Open the outer casing of remote switch (see the figure)、 connect the live wire and public neutral wire to mains supply 、 connect the two wires of electrical appliance to public neutral wire and corresponding binding post A、 B、 C、 D -After wiring is finished、 put the wires in order and reset Operation instruction: -Press any one of the buttons A、 B、 C and D on remote controller of switch 、 the corresponding light or socket is powered 、 another press will cut it off. each channel can be used individually Features: -Standard 86- type outer casing -Input : 220V ＼10% 、 50Hz -Only can use in countries using 220V-240V AC Socket -Output : ＋ 500 W - Remote Controller 12 V 23A Battery (included) - Remote Size : 4.2 x 9.4 x1.7cm - Receiver Size :8.5 x 8.4 x 3.6cm -Weight: 162.5g -Color: grayish white Package:1 x 4 Ports ON/OFF Digital Wireless Remote Power Switch 1 x Remote control