... remote control It is designed with small size, beautiful exterior , Sound wave resonator (SAW) is used for stabilizing frequency, It is applied for wireless ... Staff: 21-50,including around 5 R&D StaffProduct Line: mini Card& USB reader speaker, portable FM radio speaker, MP3 decoder ... USB/TF function and FM radio on MP3 decoder board , mini speaker, Car no disk driveRemarks: 1) More new designs are ...