I use this in stereo speakers with my Nexus 4, Windows 8 tablet and iPod Nano 7G. And here lies the strength: it will be up to 8 Devices noticed. It must be connected only once, therefore. But even this will work smoothly. It can be connected 2 devices simultaneously. You can toggle through the illuminated button between the two bones. An iPod 7G can be coupled only the first device (but is probably more on the iPod). The box is heavy has a real power-off switch back. This needs also, because it is always warm to the back, even if no device is connected to it. A slight hum is noticeable in the uncoupled state. An AUX-in jack completes the package. The AUX volume can not be adjusted on the device itself, just on the music source itself! The bass is also possible when the equalizer is turned on in the phone. The sound overdriven slightly when very loudly heard. Because the verbesserungswürdigem energy management and the hum I subtract a star. I'd like a always-on device
