This is a widely used wireless control devices. It is suitable for electrical control circuit such as anti-theft alarm, remote control electric windows, signal control, industrial control, lifting equipment and so on. It uses fixed wireless code encoding, has no direction. The switch will not disturb each other. Easy to install, simple to use safe and reliable. Great help for you!<!--Features --><p>FEATURES</p><UL class=p_f><LI>New and high quality</LI><LI>Compact design and easy to operate</LI><LI>Low power consumption</LI><LI>Used in garage door, barrier, lift gate, home appliances and other industrial remote areas</LI></UL><!--Specifications --><p>Specifications</p><TABLE class=ke-zeroborder cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD width=131>Remote Control Working Voltage</TD><TD width=365>DC 9V</TD></TR><TR><TD width=131>Frequency</TD><TD width=365>315MHZ, 433.92MHz</TD></TR><TR><TD width=131>Channel</TD><TD width=365>4 CH Control</TD></TR><TR><TD width=131>Remote Control Distance</TD><TD width=365>3000 meters (Theoretical distance)</TD></TR><TR><TD width=131>Work Mode</TD><TD width=365>L / M</TD></TR><TR><TD width=131>Static State Working Current</TD><TD width=365>●7mA</TD></TR><TR><TD width=131>Output Voltage</TD><TD width=365>AC or direct current</TD></TR><TR><TD>Dimensions</TD><TD>9.7 x&nbsp;5.8 x 1.9cm / 3.82" x 2.28" x 0.75" (L x W x H)</TD></TR><TR><TD>Weight</TD><TD>225g / 7.94oz</TD></TR></TBODY></TABLE><!--Package Includes --><p>Package Includes</p><UL><LI>1 x 220V 10A 4CH Remote Control Switch Receiver and Transmitter 3000M</LI><LI>1 x 9V Battery</LI></UL><!--Extra Info --><!--produts_compatibility -->