M-Audio MicroDAC (portable USB DAC) for $59

The new condition M-Audio MicroDAC (that’s its name) which is a portable USB DAC, is currently on sale for $59~ with free shipping, with a limit of three per customer at Amazon by Amazon actual. It averages 4.6 out of 5 based on 11 customer reviews. It has USB audio input and two 3.5mm outputs, headphone-out and digital-optical out. There is a Low/High physical switch and a blue light bulb.