2.1 Speaker Mian Board 1.Support FM /USB /TF/MP3 / AUX 2.Support FAT12,FAT16 3.Resume function,with led display,color light

2.1 speaker main board

Specification:

1.Power supply:5V/1A2.Separation ≥50dB3.Distortion≤0.15%4.Output ≥550MV5.S/N ≥70dB6.Frequency response:(70HZ~18KHZ)

2.1 Speaker Mian Board