Fifine K668 USB Microphone Review / Test

Today we are looking at another budget USB Microphone, this time by FiFine: The Fifine K668 USB Microphone. This microphone is plug and play and is listed as compatible with windows and mac computer.

If you are interested in this microphone, it will set you back $20 on Amazon

What's In the Box

  1. Microphone
  2. Attached Microphone Mount (No Stand Adapter)
  3. Attached USB Cable
  4. Desktop Mic Stand
  5. Documentation

Performance / Features

The construction on this mic feels pretty nice. It has an all metal construction as well as some nice weight to it. There are no additional features on this microphone. It is the bare essentials. 

They do not list a sample rate or any information about the interface. It is pretty apparent when listening to the review that this microphone was calibrated incorrectly. With my microphone input gain set to 1%, I was clipping at 1-foot. I had to be approximately 2 feet away from the mic at 1% gain to avoid any clipping artifacts.

The frequency response is listed as 50Hz - 16kHz which is fine for a cardioid microphone of this size. To be honest, the frequency response is irrelevant because the audio clips at such a low level.

The polar pattern is not listed on the specs sheet, but on the amazon listing, they list it as cardioid. When I tested it, it seemed to be fairly omnidirectional, or at least a VERY WIDE cardioid polar pattern. It picked up audio very well all the way around the sides well past 180-degrees.


  • Decent construction
  • Affordable
  • Plug & Play
  • Windows/Mac Compatible


  • Super wide cardioid polar pattern 
  • Sounds all around bad


If you couldn't tell by the previous portions of this review, I do not recommend this microphone to anyone. The fact that it clips with the gain set at 1% is absolutely unacceptable and it makes any audio you record unusable. The only situation I was able to derive that you might be able to use this mic for is a makeshift USB Shotgun mic. If you set it a few feet away, it seemed to work decently. However, if you end up using the mic in this situation and you have a loud sound source, you have no wiggle room to decrease your input volume, and ultimately, you would be screwed. This problem alone makes me label this microphone a complete piece of junk.

If you have any additional questions about this microphone, leave them in the comments on this site or on the youtube channel, and I will try to reply ASAP. 

Buy it on Amazon