Sony's new SRS-XE300 and SRS-XE200 wireless speakers are portable tower-style accessories not unlike many others in their market. However, their OEM asserts that they have an edge over this competition thanks to its new Line-Shape Diffuser. It is designed to push the new X-Series variants' sound out over a wider area in front of them.
https://www.notebookcheck.net/Sony-debuts-new-Line-Shape-Diffuser-technology-in-its-latest-X-Series-portable-speakers.625060.0.html