Wi-Fi Dead-Zone Killer Deco E4 is the simplest way to guarantee a strong Wi-Fi signal in every corner of your home up to 4000 Square feet(3-pack).Wireless connections and optional Ethernet backhaul work together to link Deco units, providing even faster network speeds and truly seamless coverage.Want more coverage? Simply add another Deco. Seamless Roaming with One Wi-Fi Name TP-Link Mesh means Deco units work together to form one unified network. Your phone or tablet automatically connects to the fastest Deco as you move through your home, creating a truly seamless Wi-Fi experience. No More Buffering Network speeds three times faster than previous generation routers, thanks to 802.11ac wireless technology, make Deco capable of providing a lag-free connection to up to 100 devices. 2-in-1 Router and Access Point Modes Flexible and multifunctional, the Deco E4 includes a variety of features allowing it to serve as a router or access point. Just choose the mode for your actual network demands and experience the maximum wireless flexibility. Robust Parental Controls Simple, intuitive parental controls make it easy to keep your children safe while they’re online. App-Based Setup Installing Deco E4 is fast and easy. Just unpack the system, download the Deco app and follow its onscreen directions.