As with most wireless radios, a WiSA-compliant system is designed to operate in the Unlicensed National Information Infrastructure (U-NII) frequency band; it does not require line-of-sight nor does it go through walls and floors. The U-NII band was selected to maximize channel availability and thus eliminate interference.
Products built without the ultrasonic transducers do not require line-of-sight; this functionality is based on the feature set designed in by the manufacturer. However, to take advantage of the sweet spot location and auto calibration features, line-of-sight is required.
WiSA certification guarantees that the equipment will operate within a minimum of 30’ x 30’ space. This is done to set realistic customer expectations, unlike some wireless radios that claim a huge range and fail to work.
While not currently supporting multi-room settings, we are actively looking at the requirements for multi-room applications.