extend next-gen ac wi-fi to multiple users with multi user-mimonext-gen ac with mu-mimo (multi-user, multiple-input, multiple-output) technology ensures your wi-fi is delivered faster and with more efficient throughput to every mu-mimo connected device. this means your whole household can surf the internet, stream 4k and hd movies, play online games, and more simultaneously--without annoying buffering or lag.room-to-room wi-fi with seamless roamingthe ac1900+ range extender offers seamless roaming as you move around your home when linked with a max-stream wi-fi router. with seamless roaming, your enabled wireless devices will automatically switch to the strongest wi-fi signal, so you won't have to manually connect to the router or range extender when you move from one room to another--or even to your backyard. this means that you can move freely throughout your home while video chatting or streaming videos without experiencing dropped calls or buffering.pair a max-stream router such as the ea9500 with the max-stream range extender for more efficient home wi-fi that delivers stronger, more powerful wi-fi signal to all your devices.