In use the product connects without problems on a computer or smartphone via Bluetooth, but the blue LED lights is a little too powerful which does not make the discrete device for night use.
The product is worse than his counterpart from Logitech: I noticed a slight buzz in the speakers that does not appear with the Logitech that I also own.
A clicking noise appears at each connection or reconnection (absent on the Logitech).
To: compactness, price, USB port, connection ease.
Cons: no electronics to par, LED too powerful.
Conclusion: Although this finding interesting product is perfected in quality electronic sound, slam you notice the connection and disconnection, and the buzz is annoying, too bad the product is compact and connects with ease The USB port is a very good idea (it lacks the Logitech)
and can connect the player to the USB port is a great idea.