3 ms·This is only for direct line of sight in public spaces. Even 5GHz has severe trouble penetrating walls.by ein0p 2y agoThis is only for direct line of sight in public spaces. Even 5GHz has severe trouble penetrating walls.kytazo 2y agoI assume this is a yesein0p 2y agoEmphatically. Higher frequencies even get attenuated by _air_, and this stuff goes all the way up to 150GHz