?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            New and high qualityCompact design and easy to operateLow power consumptionUsed in garage door£¬ barrier£¬ lift gate£¬ home appliances and other industrial remote areas                                                            Specifications            Remote Control Working Voltage    DC 9V    <br>Frequency    315MHZ - 433MHz    <br>Channel    2 CH Control    <br>Remote Control Distance    3000 meters (Theoretical distance)    <br>Static State Working Current    ¡Ü6mA    <br>Output Voltage    AC or direct current    <br>Working Temperature    -40¡æ ~ +80¡æ    <br>Receiving Sensitivity    -105DBA    <br>Output Current    ¡Ü10A    <br>Color    White    <br>Dimensions    6.7 x4.7 x 1.6cm / 2.64" x 1.85" x 0.63" (L x W x H)    <br>Weight    161g / 5.68oz    <br>                                                            Package Includes            1 x 220V 10A 2CH Remote Control Switch Receiver and Transmitter 3000M1 x 9V Battery