mini subwoofer speaker 1.speaker, computer speaker, multimedia speaker 2. melodious sound 3. great sound 4. USB card,remo mini subwoofer speakermini speaker, computer speaker, Selling point:Extendable bass chamber: open it to get better bass resonance, or close it to get better portability.Hamburger shape: music hamburger, a great feast to your ears and eyes, but just listen, don’t eat it! ...