AC1200 Whole Home Mesh Wi-Fi System Deco S4 Deco uses a system of units to achieve seamless whole-home Wi-Fi coverage -- eliminate weak signal areas once and for all! 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 S4 three-pack delivers Wi-Fi to an area of up to 5, 500 sq. ft. (US version)+. And if that\'s not enough, simply add more Decos to the network anytime to increase coverage. Deco S4 provides fast and stable connections with speeds of up to 1167 Mbps+ and works with major internet service provider (ISP) and modem. Deco can handle traffic from even the busiest of networks, providing lag-free connections for up to 100 devices+. Parental Controls limits online time and block inappropriate websites according to unique profiles created for each family member. Setup is easier than ever with the Deco app there to walk you through every step.