Although the CES show floor isn't the ideal place for a scientific listening session, LG does have a small room filled with its various speakers that at least gave us a decent idea of how they sound. The H4 Portable offers a comparable experience to a tiny Bluetooth speaker like a Jawbone Mini Jambox, but with the benefits of a Sonos-esque WiFi setup. It's also able to play back quite a bit louder than the Mini Jambox without distortion.
As for the rest of the lineup, it's functional, but uninspiring. The H3 is similar to the Play:1 it's up against; the H5 is comparable to the Play:3; and the H7 -- Play:5 -- is also comparable. Across the range, mids and highs seem to have been compromised for the sake of bass, and because of this, everything sounded a little muddier than the equivalent Sonos, although both the H3 and H5, like the H4 Portable, were able to pipe music out at higher volumes than the Play:1 and Play:3 without distortion. There's also a soundbar called the H6, which features four speakers, a mini-sub and also negates the need for a hub. LG plans on introducing a seven-speaker version that would come closer to Sonos' nine-speaker Playbar.
Read more: http://www.engadget.com/2015/01/07/lg-music-flow-wireless-speakers-ces/