MCL HP-USB/J21 4W Black loudspeaker

2.1 stereo conpact mini speaker, 2 x 2W, 180Hz - 20KHz, 80 dB, 400 mAh / 3.7V, 3.5mm The HP-USB/J21 is an extraordinary audio device. It offers the right balance between sound quality and portability. Two powerful high-quality amplifiers produce exceptional sound while high capacity batteries facilitate up to 12 hours playback on a single charge. The HP-USB/J21 is compatible with your laptop, MP3 player, game console, iPhone, iPad and other portable devices and has a combined weight of only 144 grams.