... speaker 2. melodious sound 3. great sound 4. USB card,remo mini subwoofer speakermini speaker, computer speaker, Selling point:Extendable bass ... bass resonance, or close it to get better portability.Hamburger shape: music hamburger, a great feast to your ears and eyes, but ... cable: just a gentle pull to extend and retract the cable, get you out of the mess caused by the overlong cable.2-in-1 mini USB ...