Unable to connect my laptop, but seems to recognize the device asks for a binding code that is not indicated on the documents of the enclosure and when I attempt to form a new systematically gives me an error code. As for the laptop seems to recognize but can not seem to make the connection with the music. Regarding the jack connected to the PC socket or an mp3, the sound is very low. Consequence: the speaker will use to me. No explanation leaflet for the difficulties encountered.