audio speaker 1.speaker, computer speaker, multimedia speaker 2. melodious sound 3. great sound 4. USB card,remote audio speaker mini speaker, computer speaker, ... port: through which you can recharge speaker and input audio, one port is better than two ... 51g product category MINIinterfaceUSBStructure Floor-standingFunctionUse the computer speaker gifts and other promotional items Load power2.2WBass ...