Bought beg for it sounded good. Good battery life without the light show and the coin I draped (600) I am proficient satisfied. Playing loud and clean, giving as much bass one would expect, I think.
Bought one for his daughter and think it sounds good considering the size and price, the IOF is not compared to anything like it. Light effects are a plus.
Overall, a pretty nice speakers.
The light show is working well and the color sensor is a nice little added feature. This means that the sound in relation to the size / weight / price will not be in absolute top class as the example JBL 2+ charge. Regular price of 2000 - also feels a bit too juicy but may be justified if one appreciates the cool light show that is not really found in some competitors and who actually can be quite pleasant in the evenings and nights, that is not just a selling point.
Audio-wise, sound character of the speaker as a mix between the JBL charge 2+ and a JBL Flip 3 on steroids. That is slightly less bass boosted compared to the charge 2+ but with higher maximum volume.
Battery life is good, much as promised. To have only light show on the night (6h) without playing music drew about 3 to 5 dots from the battery.
The unit feels quite robust but not as sustainable as ex JBL Flip 3 and JBL Xtreme has soft protective fabric cover. Unfortunately, the color sit a little bad because I already had small marks on both my copies.
Briefly: Cool, ok sounds good to be paired in stereo, ungainly app.
Very cool factor (light box, charger) I bought a pair of 990 / each, to get stereo sound. You can not get rid of on / off sound is quite loud / disruptive. Get step for adjusting the sound level. If you turn off the light you can not see the speaker is on or not. It takes forever to load it, sometimes they have been in charge all night but has not been fully charged in the morning! Troublesome pairing, every time you go out of the app and open it again, the app can not find the speakers even though the speakers are connected to the cell phone and plays (in pairs) mode. They must be turned off and on again. You can use different light show but can not turn off the light through the app.
Great sound and awesome light show. With the app that you can download, you can change the light patterns. The battery lasts a long time.