Finally, the K670 has a removable cord while the K669 does not. I highly recommend it. The k670 also costs $10 more than the K669. This site is a free online resource that strives to offer helpful content and comparison features to its visitors. Their main difference is that the Fifine k670 has the headphone jack while the k669 does not. The Microfone Fifine Technology K670 USB Condenser was acquired in AliExpress FIFINE Official Store.This microphone plugs directly into a USB port on the computer, in other words, it already includes its own audio interface. So Maono AU-A04, while being a pricier option, tends to get more favorable ⭐ reviews than the $50 Fifine K670, as seen on the chart below. Plug and play and doesn’t require any software or drivers to be used. FIFINE MICROPHONE Home Best Seller Best Seller FIFINE K670/670B USB Mic with A Live Monitoring Jack for Streaming Podcasting on Mac/Windows FIFINE K670/670B USB Mic with A Live Monitoring Jack for Streaming Podcasting on … Advertiser Disclosure. Based on 106 reviews Write a review. X. FiFine K670 USB Microphone Review / Test. Fifine K670 USB Microphone for Mac and Windows Computers. It plug-and-play and pantry drivers.Has a jack 3.5mm for headphones providing a return without latency and comes with a table support with 3 height levels. On top of that, it's fairly safe to say that Maono AU-A04 is a more popular microphone, based on its 1,000+ reviews. Find helpful customer reviews and review ratings for USB Microphone,Fifine PC Microphone for Mac and Windows Computers,Optimized for Recording,Streaming Twitch,Voice Overs,Podcasting for YouTube,Skype Chats-K670 at Amazon.com. Today we’re looking at a budget usb microphone, the FiFine K670. This mic comes in at under $50, and seems to work well enough. Fifine k670 vs k669. Customer Reviews. It uses a cardioid pattern and ignoring sounds entirely from the sides and some of the noise from the back. Product Comparison: Fifine K670 vs Fifine K669. ... Other reviews. Read honest and unbiased product reviews from our users. The quality of this device is amazing for its price! One thing you might be wondering is the difference between Fifine k670 and k669.