I have had it for 4 years, from the USA. The speaker fills a 50 square meter living room at 50% volume, anything louder can be annoying for the neighbors. The sound does not distort at all and the quality it delivers in the treble cannot be compared to anything else I have seen in this size of speaker. The build quality and design are excellent. The application on Apple devices works very well, as does the AirPlay.

I was looking at it, looking at it, but it seemed expensive to me. I was torn between Klipsch (The Sixes €899.00) and the Naim Mu-So Qb (€889.00). I wanted quality sound without too many cables. One morning in November, I saw the price had dropped to €1079, so I ordered it without much thought. It took a little while to arrive (about 1 month), but the wait was worth it. It does everything and does it excellently. It not only fills a 60sqm room with sound, but it produces clear sound that doesn't tire even after 2-3-4 hours. It's a delight. I have connected it to the TV with optical and use it as a soundbar for movies. With the mobile app, I play whatever comes to mind, mainly rock and metal. Spotify, Youtube, (network cable), bluetooth, jj cale, virgin steele, ac/dc, etc. It is perhaps the best purchase I have made. For sound, only England. 5 stars easily

None of the sellers, from what I saw, mention features,
Please:
Product Description
System Components Wireless speakers
Speaker Type Active
Speaker Power 450W - 6 x 75W
Type Speakers / Micro Hi-Fi
Connection Technology Wired & Wireless
Connectivity Optical S/PDIF, Side USB Type A, 3.5mm jack, UPnP, AirPlay, Spotify (Connect), TIDAL, Bluetooth (with aptX), Ethernet (10/100Mbps), Wi-Fi (802.11b/g) 2.4GHz
Sound Amplifier Integrated
Speaker System Details Brushed aluminium casework, silver anodised heatsink, black fabric grille. Grille options in Deep Blue, Vibrant Red, Burnt Orange.
Dimensions (WxDxH) 62.8 cm x 25.6 cm x 12.2 cm
Weight 13 kg
Additional Features Audio Formats WAV, FLAC and AIFF – up to 24bit/192kHz ALAC (Apple Lossless) – up to 24bit/96kHz MP3 – up to 48kHz, 320kbit (16 bit) AAC – up to 48kHz, 320kbit (16bit) OGG and WMA – up to 48kHz (16bit) Bluetooth - SBC, AAC and aptX
The only negative is its price, I believe that with the same amount of money you can build an equally good system from different components which, by placing them in different points (corners) of the room, will achieve better sound distribution