Of all the 30-euro speakers that I've seen and heard the Wavemaster MOBI2 by far has the best sound. He is in the heights a little clearer than the MOBI1 and not rattling on full blast (as EasyAcc speakers). He also has the highest Bluetooth range that I have ever seen in such speakers.
I bought the MOBI2 because there is a cable break gave the 1 Series (the plug). I would say that this is the MOBI2 also vulnerable. Since I use it mainly is via Bluetooth after 13 months here but still everything is fine. The MOBI1 läift incidentally also still problems, it's just broken the outer casing.
After about 10 months of the sound in Bluetooth mode was sometimes silent on its own. It turned out that switch was. Pressing to him a little further "towards Bluetooth" it gets loud again. You can pry the housing carefully to clean the switch.
Battery life falls a bit lower than in from MOBI1, but I need him no more than 1x, despite constant use charge per week.
For MOBI3 I wish a speakerphone.