3Pcs 2x13 USB Mini Spectrum Green LED Board Voice Control Sensitivity Adjustable

Description:
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Module size: 39.5mm*15mm*10mm
Green LED
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Function introduction:
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1, With a microphone, no need to connect to audio cable.
2, Power: 5V(USB interface ).
3, High brightness.
4, Using single-chip microcomputer drive, spectrum is better.
5, Sensitivity to sound, 10 step adjustable.
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Package included:

3 x?Spectrum Green LED Board(without USB cable)