RANGEMAX WIFI RANGE EXTENDER RangeMax is an advanced Smart MIMO (Multi-In, Multi-Out) technology that uses multiple internal antennas. RangeMax routers constantly survey the network environment for physical barriers and interference and adjust the wireless signal to compensate for these performance blockers. Designed to extend wireless coverage and make the entire home a hot spot, it delivers up to 10 times the wireless coverage of 802.11g.