FULL DUPLEX COMMUNICATION - Ensures no one will be cut off when speaking, even if two people are talking at the same time. This allows for a much more natural conversation experience. DAISY CHAIN UP TO 15 UNITS - It doesn’t matter the size of room you need to cover. Add a Phoenix Audio Power Hub into the mix and you can expand your Spider coverage exponentially. BEAMFORMING - Four fixed-direction directional beams with Constant Beamwidth designed to improve noise and echo cancelling as well as overall voice pickup. CEILING MOUNTABLE - The Smart Spider supports a mounting system (sold separately) that allows you to mount units directly to the ceiling. Available in Black and White. USB POWER - The ability to provide power to the device through the USB connection getting rid of the need to use a separate power supply.