Why Do You Need Deco E3? Wi-Fi Dead-Zone Killer Deco E3 is a simple way to guaranee a strong Wi-Fi signal in every corner of your home up to 2,400 square feet (2-pack, EU version). 2.4 GHz and 5 GHz wireless connections work together to provide even faster network speeds and truly seamless coverage. Want more coverage? Simply add more Decos. Convenient Plug-In Wi-Fi for Additional Coverage Weak Wi-Fi signal in the hallway, kitchen, garage or basement? Get further Mesh Wi-Fi coverage by simply plugging more Deco add-on compact extenders Deco M3W into wall outlet, and enjoy all the functions of the main router. Notes: Deco M3W needs to work with Deco routers to extend Mesh Wi-Fi. Seamless Roaming with One Wi-Fi Name TP-Link Mesh means Deco units work together to form a unified network with a single network name. Enjoy uninterrupted streaming, downloading, gaming and more as you move through your home, and no more switching Wi-Fi names, creating a truly seamless online experience.