The terminal must first be pushed in to the speaker in the two slots in the rear. For this you need some strength. The terminal itself operates with spring force and holds very well and safely on the notebook. Can you reconnect the speaker either on top of the Notebook - display or on the side. In addition, you can also put it vertically or horizontally into the supplied stand.
When I connected the speakers to my laptop via USB, it took a moment for Windows 8.1 had the driver installed. The first thing I did one of my songs played to see how the sound is and then suddenly got a decent horror. My goodness that was loud. I had the volume to level 2 runterschrauben and it was still too loud. In addition, the speakers blared under his breath and the sound was not nice at all.
After several hours of search on Google and some experiments with the audio settings of Windows to achieve something, I was already on the verge of giving up. What I had been found out was that it somehow had to be due to the drivers. So I uninstalled then unceremoniously as last attempt in the Device Manager under Sound, video and game controllers the driver for USB sound device and audio inputs and outputs the driver for USB speakers Sound Device, pluggable speaker and restart Windows.
After restarting, I have connected the speakers again and Windows installs the driver again. Lo and behold ... it went. I can now adjust the volume as usual, just as it should be. And the sound was much better with time. So it was actually a pure driver problem.
Having now so work as they should, I'm very happy with it. They improve the sound of my notebook speaker considerably and since I can install it on the screen, they do not mind if I have my laptop on the lap times. I like them very well. 5 stars from me.