The speakers show no signal applied a clearly audible buzzing sound - unfortunately for the installation site in my bedroom a real no-go. Since there is no real off switch, but only a volume control, this can only be interrupted by USB cable pull, which in turn in existing 3.5mm jack audio connection to the mobile player device that I use, the immediate shutdown of player when re-plugging the USB cable of the boxes (for the purpose of reactivation) causes. Thus, the boxes seem any way unfavorable level through the audio cable to send the my player can not stand ... my player is me there but clearly important ... The sound was actually the way for the tiny size quite OK, though actually lack bass ... but along with the hum and the stalling of player (reproducible) - Sorry, no recommendation from me!
