The Swiss-designed DrumBass IIIe rechargeable speaker was awarded the coveted Red Dot Product Design Award in 2011. It showcases a sleek new design with an elegant aluminum alloy finish. These tiny speakers reveal a stunningly powerful bass with an incredible stereo effect. This speaker set is compatible with iPod, iPhone, iPad, Blackberry, PC, MAC and most other mobile devices with a 3.5mm audio port. The DrumBass IIIe features up to 9-12 hours of music playback time and is rechargeable via USB. Exclusive storage case, Stereo audio cable and charging cable included.