TP-Link Deco E4 AC1200 Whole Home Mesh WiFi System (2-pack)AC1200 Whole Home Mesh WiFi System [DECO E4 2PK] Deco uses a system of units to achieve seamless whole home WiFi coverage. With advanced Deco Mesh Technology, units work together to form a unified network with a single network name. Devices automatically switch between Decos as you move through your home for the fastest possible speeds. A Deco E4 two pack delivers WiFi to an area of up to 260 square metres. If thats not enough, simply add more Decos