MSpeaker Pro The MSpeaker Pro is a speaker developed by Yealink specifically for video conferencing in medium-sized meeting rooms. With its four high-quality speaker units, it delivers crystal-clear, vibrant sound that makes conversations feel as if they are happening right in front of you. In addition to outstanding audio quality, the MSpeaker Pro offers an impressive maximum volume of 95 dB, easily filling the entire room with powerful, clearly intelligible sound. It also supports star-shaped cascading, allowing multiple devices to be linked together for flexible audio coverage and an even more immersive listening experience. Using standard PoE/PoE+, both power and data are transmitted via a single network cable, reducing cabling effort and ensuring a tidy, uncluttered meeting environment.