Brand Belkin therefore guarantee of quality.
Emits very well. A little more difficult and less audible open paris but very functional in the suburbs.
Compatible with all devices using the 3.5mm.
When connecting the plug usb audio quality is slightly impacted but remains well audible and USB port lets you use the phone as a music source without unloading.
Very easy to use.
Although I think the price is still quite high, there are only on amazon I found a reasonable price for this article and I recommend.