+ Good design
+ The Bluetooth connection is established quickly (Sony Xperia, Galaxy S3, Galaxy Tab 2)
+ Bass and mids are also more or less in order.
- The highs sound like a Radiowecker.Ich tried using mp3, FLAC, played with equalizer, but that did not help. The sound is muffled. My old Hama Sonic Mobil 400 has better heights.
Overall, for the price the unit is fully in order. But I'll look around for expensive alternatives.
Also the display had an error. If the volume was less than 10, the first letter or digit of display disappeared. So instead of 101.3 FM was only 01.3. That's why I returned the device.