The receiver end starts working right away.  Simply plug it into any available RJ-45 ports on your ez-kit FlashFog security fog system.  If you need more ports, make sure to also get an Ez-kit splitter in this order. The radio kit comes with two key fobs;  however you can order as many buttons as you need, at any date.  To match them with your current ez-kit security system, you just need to follow our video "pairing" procedure. If you need more than two buttons, we recommend you order them as part of today's order. Range: 100 to 160 feet (3o to 50 meters) from the end that plugs into your ez-kit system. Button A: Toggles between armed and disarmed, for the whole ez-kit system. Button B: "Blast"; activates any integrated security foggers, security strobes or sound barriers, provided the system is already armed. Hell will stop only when you chose to disarm by pressing the A button.     [cs_gb id=12375] [cs_gb id=12446]