I can only agree with my Vorrezensenten. These small speakers have nothing to be desired for the way music enjoyment. In addition, they are also on other equipment super usable and not merely on Nokia mobile phones! Even on my Sony Ericsson W890i they function properly, thanks to the connection adapter for the headphones, which in most Ericsson phone with at .The adapter namely has a standard headphone jack, the speakers turn a standard headphone jack, so it will easily slip off. Here I was very satisfied because I previously Sony Ericsson Speaker (MPS-70) have bought, which however not W890i work with, although they are even specially advertised on the official site as an accessory for this very mobile .. , Regardless, these speakers are working splendidly! Even so gorgeous that I use them often as PSP speakers! It's unbelievable what the Games hermachen there acoustically at once! Value both PSP and the Ericsson mobile phone a a purchase! Furthermore: The speakers can be positioned horizontally and vertically, they are folded, they switch off, thanks to the small bottom-mounted pin which when folded up the power switch on of will. Also a radio antenna is integrated in the speakers. A carrying case is also included in the delivery. The only downer: There are but separate batteries benötigt.Ist me actually so rather than when n bunch current is drawn from the main unit.