What I like most but no extra power supply is required. Simply Pinoneer USB speakers connect via USB to the PC and even the speakers automatically supply the power from the USB connection to the computer.
So already rang out after less than one minute of the "sound" from the speakers. I am satisfied with the audio quality. There are both ups and enough to hear "bass". Anyway, I found these speakers better than comparable mini speakers of other competitors in this price range and with these dimensions.
At the right speaker can be minimized or increase the volume by pressing and holding the key. The middle button is the MUTE button - is pressed once, and the tone is immediately. A second press on the MUTE button obtained that the speakers playing in the previous volume level further. For quick volume setting a rotary potentiometer would have been in my opinion more beautiful because the desired volume then would have to continuously adjust and faster. But of course you can adjust the volume as well fairly quickly adjust over the speaker icon in Windows.
Now it only remains to be hoped that correspond keep the speakers long as one would expect from the brand Pinoneer. Only the USB connection cable could have been a little longer allowed to turn out good 65 cm length are a bit short 1 meter would be ideal for most desktop PC systems have been.
Real amazing why these speakers are rarely represented in trade.
Technical data according to the manufacturer:
Maximum output power room Music Power RMS = 1.5 watts + 1.5 watts, 1 kHz, THD 10% 4 Ohm
For the dimensions of the speakers: approximately width 70.4 x depth approx 70.4 x height approx 98.2 mm - Weight: 650 grams
Considering the small disadvantages (no rotary potentiometer for quick volume adjustment and some short, fixed USB connection cable I forgive in this price range good 4 of 5 stars. I'd these speakers to give it back now. (I had this at Voelkner directly and not bought on Amazon)