I use these speakers on my computer / ipad / smartphone and MP3 player and completely thrilled. Mainly I wanted to have boxes under the Schreibtsich that go beyond the sound of my laptop speakers also. At the same time was important to me that the boxes do not look futuristic, but in a stylish and modern. A simple audio jack cable for connection to the PC was enough for me. All this filled to the product description on Amazon these boxes. The fact that the boxes in the sound quality but surpass my 5.1 sound system with AV receiver I did not expect. The bass of small powerful speakers exceeds worlds the sound of my external subwoofer of the 5.1 system. The boxes are classic and have to a 1A-sound. I would buy these boxes anytime again and recommend. Setting allows Bass, Treble and Volume.