... charming mini usb BMW car speakers with usb,TF card,FM radio OEM and ODM service Factory ... Wholesale mini portable amplifier speaker with USB,TF card,FM radio specification:Package:1.Support music ... format like MP3 2.Support TF card, USB devices, headphones output3.built-in ... FM function and 3.5audio Port Charging function; Support TF+U dis. External battery Package included: • 1× ...