Hot! car model mini USB Speaker RX-668 1.Portable,PC Latop USB Speaker 2.TF USB FM AUX ... ! car model mini USB Speaker RX-668 Specifications Speaker Power:3W*1SNR:>=85dBFrequency Response:100Hz~18KHzBattery li-ion:3.7v,500mAhBattery ... , OrangeProduct Size:13.5*5.5*3.2Product Weight:100gIntroduction:1.Support TF card, USB, connecting your MP3,CD,DVD,VCD ...