You can use the power lines already inside your home to transmit digital data communication! By using your existing electrical wiring, the Netplug wall mount adapters let you transmit voice and audio/video data between your devices. Its Plug-and-Play capability ensures that the NetPlug 200+ acts just like a physical network cable between power sockets. The LEA networks Netplug 200+ Compact Powerline Ethernet AV Adapter Kit includes two Homeplug AV compliant Ethernet wallmount adapters and two Ethernet cords. And, the Plug-and-Play design means no software downloads or configuration is required.