usb speaker 1.lcd screen show song's name,working state 2.USB/SD/TF/FM 3.CE,ROHS FCC 4.vibration ... cell phone , mp3 ipod Iphone as speaker 4. FM radio with auto searching, Micro SD/USB slot, Head phone Jack. LCD ... method: Connect the USB charging cable to the speaker DC power input connector or plug the USB cable to USB charger. See the ... 3. Track the order until you get the goods music usb speaker