Purchased for a 45 square meter store, in order to avoid costly installation with cables, amplifier, speakers, etc.
The result is extremely impressive, especially considering the low purchase cost, the ease of speaker installation (small size, only power supply required), and connection to an audio source.
There is a significant difference in sound when connected with a cable (mini jack) and Bluetooth. Bluetooth offers much superior sound.
At maximum volume, the sound does not distort, although it is quite bass-heavy, and the result is powerful and full.
Obviously, it does not deliver crystal clear sound or hi-end sound, but considering the 59€ price (everything is a matter of performance/price), I am completely satisfied!

This speaker is a bold and innovative implementation of an idea by Greek engineers at CRYSTAL AUDIO. It has 6 units for mid-high frequencies and one woofer! The omnidirectional sound it produces is powerful and rich, filling not only the room but the entire house pleasantly! Care must be taken in placement to allow the bass to circulate freely, otherwise it may overload the space. The speaker does not require a sweet spot. You can enjoy the music just as well from any point you are! Place it carefully, away from obstacles or walls, adjust the bass reflection if necessary, and... enjoy music from ANOTHER PLANET!

Stefanos Christodoulou