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 quality<br>    Compact design and easy to operate<br>    Low power consumption<br>    Used in garage door￡? barrier￡? lift gate￡? home appliances and other industrial remote areas<br>                                                            Specifications                        Remote Control Working Voltage     DC 9V    <br>          Frequency     315MHZ - 433MHz    <br>          Channel     1 CH Control    <br>          Remote Control Distance     3000 meters (Theoretical distance)    <br>          Static State Working Current     &#8804;6mA    <br>          Output Voltage     AC or direct current    <br>          Receiving Sensitivity     -105DBm    <br>                                                             Package Includes                1 x 220V 30A 1CH Remote Control Switch Receiver and Transmitter 3000M<br>    1 x 9V battery<br>