TF Card DC5V Sound System 2.0 Mini Bluetooth Speaker 1.Color: Red,Blue,silver,Black 2.Use:Mp3/Cellphone 3.CE, ... : Mini,Portable,Wireness5. SNR: ≥ 80db6. Sensitivity: 80db ± 2db7. Type: Active8. Color : Blue/Red/Black/Silver 9. Dimensions : 60 X 60X 50mm ... Product size(L*D*H) 60 X 60X 50mmPower supplier:USB 5V±0.5VOutput (RMS):3 WColor:Black, Red, Blue etcSpeaker ...