1.mp3 board usb sd card 2.FOB price:US $0.95-98 ... 4.Payment terms:T/T,Paypal mp3 board usb sd card / manufacturerWelcome to Eastwin! Our PCB board manufacture ... ,Yellow,Blue,BlackSilk ScreenDouble-sided or single-sided in white,yellow,black,or negativeSilk Screen Min Line ... sizes like 1206,0805,0603 components SMT technology----ICT(In Circuit Test),FCT(Functional Circuit Test) technology.----PCB ...