USB condenser mics are two a penny these days while, for a variety of reasons, dynamic mics remain pretty thin on the ground. There are a few exceptions though, and we’ve featured a couple in this guide.
In terms of recording performance, a USB dynamic mic is blessed and cursed with the same advantages and disadvantages as any other dynamic mic. That weeny USB socket and thin cable do have some additional practical benefits though. USB mics can be plugged directly into a computer, tablet or phone without the need or added complication of an expensive interface. This makes them easier to use, connects them to a ready supply of gain and makes your recording rig lighter to carry.
They are, however, limited to cable runs of 5 metres and there’s the slight chance that the cable, which is unbalanced, will pick up additional noise. This may or may not bother you.
Without a doubt the pro’s choice, XLR connectors and cables are robust, balanced and can be run for 60 metres or more. They are substantially heavier though, and will need to be hooked up to a desk, mixer, preamp or interface.
The biggest issue with USB mics of any kind is that there are very few pro-level models on the market right now, but fortunately that’s slowly changing. You’ll find some great examples in this guide.