Have the converter bought mini for Bose SoundLink and can not confirm the function. However, the converter is also no provision for it. I tried a variety of sources: 1A port of a laptop, 1.5 A port of a PC, Stadard 200mAh USB from different PCs - no one could the Soundbox even minimal load. Connections fit properly and the converter also provides measured between 10 and 15V, but even after 20 hours the box was not being charged of on orange (below 70%) to green (over 70%). Charging LED of the device blinks initially normal, but likes to go to a much faster flashing (probable error) over; occasionally charging switches off completely. Who knows a functioning transducer, please feel free to post!