Whole Home Coverage: Deco M4 (3-pack) uses a system of units to achieve seamless whole-home WiFi coverage up to 5,500 sq. ft. — eliminate weak signal areas once and for all!* TP-Link Mesh Technology: 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** Fast Dual-Band WiFi: Deco M4 provides fast and stable connections with speeds of up to 1167 Mbps and works with major internet service provider (ISP) and modem.* Connect More Devices: Deco can handle traffic from even the busiest of networks, providing lag-free connections for up to 100 devices.* Parental Controls: Limit online time and block inappropriate websites according to unique profiles created for each family member. Easy Setup: Setup is easier than ever with the Deco app there to walk you through every step.