Installation, ultra-simple to use, just plug / unplug the speakers to a USB port.
Purchased to receive a greater volume when I plug a laptop on a screen in order to watch a movie or video: I was looking for an extra cinema atmosphere and the result is there!
Also perfect for listening to music! The sound is good, the neighbors can enjoy ...
The only downside is the weight (even if it is relatively light) to use force, we feel that the mechanics of opening and closing (bending) of the laptop must support an unusual charge; so it is best not to have a laptop already suffering that side.
Completely satisfied with the performance of the device, however.