I wanted a nomadic bluetooth speaker with a sound worthy of the name, I found it! Minimum space, excellent sound quality for a mobile device at this price point. Good treble and bass made with a + for bass. The volume is more than enough, few even create tensions with neighbors;) Perfect for a room up to 30m2 (I use it in my room 15m2 with my laptop for music or video, and in my bathroom or my kitchen (approx 20m2) with my android smartphone). Ultra simple connection and no unwanted disconnections. The range is in Buetooth standard, tested up to 8m. For now I have used only fashion sector, so the use of batteries will be a future comm. Really very satisfied, I recommend it to the point that I think even in my resume, see two;)