Scosche boombottle mini wireless speaker the scosche boombottle bluetooth mini wireless mobile speaker is a very convenient way to be able to hear the music or soundtrack from your smartphone tablet etc in high quality sound wherever you are outdoors this weatherproof and rugged mobile speaker has the size and shape of a cut off standard bike bottle or outdoors water bottle so it is easy to carry and it fits neatly into a bike water bottle cage the 40 mm driver and a passive subw