... SD,USB card reader 4. Computer perpherials 5. Electronics audio products 5.1 Home theater speaker 1. 5.1 home ... remote control2. support SD,USB functions3. Blue light of electronics audio products4. Computer perpherialsTechnical parameterOutput Power; 12w+6w*5Speaker driver: ... Seperation >45dB Frequency 35Hz-18KHz Input Sensitivity 400mV electronics audio products of 5.1 speaker , computer perpherials