

🎤 Elevate your voice, ditch the wires, own the room.
The FIFINE K031B Wireless Microphone System delivers professional-grade audio with 58dB signal-to-noise ratio and an 80-foot UHF wireless range. Compatible with PC, Mac, iPhone, and Android devices via USB-C, it features dual microphone options—headset and lavalier—perfect for streaming, meetings, and presentations. Easy plug-and-play setup with automatic pairing and an LCD display ensures hassle-free operation, making it the ideal affordable choice for content creators and professionals seeking wireless freedom and crystal-clear sound.









| ASIN | B074C125TN |
| Antenna Location | Speech, Video Conference |
| Audible Noise | 58 Decibels |
| Audio Sensitivity | 58 Decibels |
| Best Sellers Rank | #21,371 in Musical Instruments ( See Top 100 in Musical Instruments ) #328 in Wireless Lavalier Microphones & Systems |
| Brand | FIFINE |
| Built-In Media | Headset UHF wireless system, USB receiver, Transmitter, Headset, Clip lavalier lapel mic |
| Color | Black |
| Compatible Devices | Headphone, Personal Computer, Radio |
| Connectivity Technology | USB |
| Connector Type | USB |
| Customer Reviews | 4.1 out of 5 stars 1,149 Reviews |
| Enclosure Material | Metal |
| Frequency Response | 15 KHz |
| Hardware Platform | Smartphone |
| Manufacturer | FIFINE |
| Maximum Frequency | 15 KHz |
| Mfr Part Number | ABCD170017 |
| Microphone Form Factor | Lavalier |
| Model Name | K031B |
| Model Number | K031B |
| Number of Batteries | 2 AA batteries required. |
| Number of Channels | 1 |
| Polar Pattern | Unidirectional |
| Power Source | Battery Powered |
| Recommended Uses For Product | Speech, Video Conference |
| Signal-to-Noise Ratio | 58 dB |
| Special Feature | Wireless, USB |
| UPC | 728290253660 728290254131 |
| Unit Count | 1.0 Count |
A**K
Fantastic, budget lavalier microphone
In the box: The packaging for the Fifine Lavalier Mic is really nice. It comes in a plain white, and very simple box that contains the microphone, the USB receiver and the USB stick that goes into the computer. It also comes with an instruction manual, to help set up the device. There is also nice padding around the items to insure that the contents don’t get damaged. There is also a 3.5mm to 3.5mm cable included in the box. Setup: The setup of the microphone is very easy. The USB receiver takes two AA batteries, which are thankfully included in the box. The 3-pin XLR cable that is attached to the mic plugs into the top of the USB receiver. Hold down the power button to turn it on. Then plug in the USB stick into the computer and it will automatically install the drivers needed. After that, just make the microphone your primary sound recording device and you are good to go. Very simple, easy, and well explained in the setup manual. Only took me about five minutes to do. Quality of Products: All the products feel slightly on the cheaper side, since they are mostly made out of plastic. But despite the cheap build quality, all of the products function well. The Microphone: The Microphone has a pretty short cable which connects to the USB receiver. It is nice that the mic is wireless so you don’t have to fidget with wires when using it. The mic also attaches to your shirt via a clip attached to the mic. I found that I get the best audio quality when I attached the mic to the bottom of my shirt collar. Sound Quality: If the microphone doesn't sound very good at first, make sure you have the microphone set as your default recording device and have it clipped to the top of your shirt. Once I had done this, the audio quality was amazing. It was crystal clear with very little background noise. Given that the mic is wireless, I was pretty surprised. Overall, this is a great mic for starting Youtubers and for giving talks.
D**G
Get for $40 what others charge $200 for
First off, this product was given to me for review. Now, onto the actual review! So I had the chance to review this mic over the last week or 2. I have used this to record 5 of my YouTube channel videos, and did a few livestreams with them as well. So for me, the biggest thing that I require out of any piece of audio equipment is that it works on Linux. The reason for this is all my content is shot edited and recorded on Manjaro KDE, but I am also a Windows, and MacOS user. So it is imperative that my audio equipment play well in all 3. To which, I can say that the K031B does just that. Pros- +UPnP Audio device +Works in Linux,Windows, and MacOS +Sound quality for the price is fantastic from both headset and Lav Mic +Build of the USB receiver, headset mic and lapel mic, and transmitter is good +Headset (great for livestreaming) +Lav Mic +Transmission range is quite good again for the price +User Replaceable Batteries +Good Battery Life (I was getting about 7 hours on cheap dollar tree batteries) Cons: -USB receiver is a little large so if your computer has all your ports crammed tight together could be a problem -Finding the right position for headset microphone will take some experimenting for best audio -Does not come with batteries for receiver -Uses a Mini XLR connector which could be a problem for some people. Overall, I am more than satisfied with the Fifine K031B. If you are looking for an affordable wireless lav or headset setup for interviews, livestreaming, church, or conferences this is a great affordable starting point. Those 200 dollar plus microphones just made it a lot harder to justify their cost.
M**N
Great!
I use this for my podcast, and absolutely LOVE IT! I've been testing out a few different ones, and these had the best quality for the price. Recently bought a second pair for my co-host (I made sure to buy the CORRECT model this time, lol), and she loves it too! The headset is nice and lightweight, and even though it doesn't perfectly form around the back of my head, I don't even notice it. I got used to the subtle squeezing on my cheekbones very quickly. Even moving around, it doesn't bounce around. Only complaint here is that while the mic boom itself is adjustable, it really REALLY does not pack well for storage, unless it's being hung on a hook. I would like to see Fifine fix this. Both mics have cords that are plenty long enough to have the transponder hooked to the back of you pants, and the wire running up your back and around your body, with plenty of slack left. Both also have a great sound quality to them, with the transponder able to reach some pretty great distances (even with minor, physical interferences). Unfortunately the plastic "C" clip that clips the alligator clip to the lapel mic broke (my own fault for taking it on and off constantly to switch sides on the clip cause I'm too indecisive), but the clip itself is very nice. It's a metal alligator clip with a pretty large mouth, and a good, strong spring to keep a grip! USB receiver is a bit too wide though. So if you have 2 USB ports really close to each other, you might not be able to use the other one. It was a simple "Plug and Play" to it, and once you power on the transponder, it connects quickly and automatically to the receiver. The support team is PHENOMENAL too! When I bought my first set, I idiotically looked over the part in the description that read "will not work with mac/pc" and so I bought the wrong model. They quickly reached out to me after my initial review of THAT one (complete with admission of buying the wrong model like an idiot), and assisted with me getting the correct receiver so I COULD use it on mac/pc, and at no additional cost! I didn't ask for it or anything. In fact I had already set up for an Amazon return to buy the correct model when they contacted me. Lucky for me I hadn't set it out yet, lol. They even tracked it for me, and made sure it arrived, and I recieved it. They walked me through step by step on how to pair the transponder for the incorrect model to the new receiver they sent me. Made sure everything was set up properly, and that I was happy and satisfied! Even messaged me back a few weeks later to check in on me and see if everything was still going great! The best part was, it felt personal. In a good way though. I talked to just ONE person the entire time. It wasn't I talked to Steve one day, Bob the next, and Erica the day after. It was all the same person helping me, which made things a lot easier to correct when I had issues, cause they already knew everything there was to know before hand. That's 5⭐ quality customer service right there
C**R
Working GREAT at the two month mark.
I have used this wireless microphone for about 2 hours, five times each week. So at about totoal 80 hours of use, I am loving it. I am using the microphone to make videos for my class as I am now teaching online. The sound quality on my movies, using this microphone, on a MacBook Air, using QuickTime and iMovie, is excellent. I read books and often do a voice over. I have no sound delay at all when using this product, not live, not with voice over. I have accidentally dropped the remote box a couple of times, from about 3-4 feet to the ground, and it has not broken. The casing is sturdy and the clip has a fine hold on your pocket or waistline as long as you remember to clip it on! The Microphone is about the size of a large grape, it is unobtrusive in my videos. I have not used the wireless headset yet. With the wireless microphone, I can walk around in my room and have a level sounding voice when recording videos. Overall, for the cost I think this is an excellent product. I read the reviews before purchasing this and I researched many choices. All of my concerns after reading the reviews were unfounded. I will update this if something changes, but I feel that this is a super buy for the cost and it solved all of my sound issues while teaching online. At this point, I would purchase it again and I would recommend it to a friend.
A**M
Static 50% of The Time - A Gamble at Your Own Risk!
Half of my recordings were plagued by 20-60 second audio cut outs, static, or other interference. *Repeat words from another client also experienced by me after buying* I wish I had noticed this by looking at the few 1 stars. They are there for a reason. Read the one star reviews. Lesson learned. I was horrified listening back to it what a lousy job it did. I cringe to listen to the 30 hour job I did for a client all the way through. For a short project on a good day, you may not notice any issues, but for longer projects, you cannot trust that there would be no cut-outs or static. * Static * Cut outs * Muffled sounds * Spent 5 hours on a project yesterday trying to use this mic. A sad waste of time and effort. I cannot use it. It is riddled with so many random bits of static and cut outs. I have a different pro-lapel mic but it needs a USB interface. I thought I was saving time but it was plain dumb to trust this product. I read reviews but I did not see any warning about this. I would certainly not have risked it. Do yourself a favor and vet thoroughly before buying. I should have done a better job but USB mics are hard to find. I really think some computer activity may mess with this product and that may be what is happening with the cut-outs. Nonetheless my return window just passed incidentally yesterday. Let this be a warning to other more fortunate ones.
J**B
Great wireless set for many uses!
When I ordered this set I was excited to use it because I've used by fine products. When it finally arrives and I got everything set up and tested it it worked as I had expected. the lapel mic works as good as you would expect, but overall I think the best quality audio came from the headset microphone mostly because of its placement. It's easy to set up, literally Plug & Play. the audio quality coming out of headset mic was fantastic, so I could see this being used very well for churches or other Live Events were audio quality especially from a distance over large speakers is key. The entire set seems pretty high-quality even the transmitter feels like it's well made. Overall it's another great product. The microphone set shipped quickly after I ordered it and drive fast very professionally packaged and it was just simply worked great. Overall very happy with it and highly recommended. Keep an eye on this review as I will update with any issues I run into.
B**.
Fine while it works, but durability/longevity an issue
I'm a classroom instructor and bought this mic and transmitter for recording lectures. With such an affordable price, it did an admirable job for about 9 months. Plug and play functionality on both Windows and Linux (Mint) systems. Some critical observations during that time... - Its microphone had to be pointed straight up (toward my mouth) when clipped on; when the lapel clip slipped and the mic angled 45 degrees, audio volume was noticeably decreased. Not a huge deal, though. - It goes through AA batteries *very* quickly. I got some rechargeables to use and they last maybe 2.5 to 3 hours. The "battery indicator" on the transmitter is pretty worthless; goes from 3/3 bars to dead very quickly. - If I'm having an exchange in class with another person, their voice is almost completely absent. The rule for this mic seems to be "near or nothing." Its longevity is an issue, though. Its become unreliable after about 9 months of use. Audio cuts out, distortion enters, and even significant dead segments have started occurring on my recordings. It hasn't suffered any major drops/blows or anything, so its durability seems suspect. I tried a new mic extension and the issue persisted, so the problem seems to be with the transmitter. Overall, $40 for 9 months isn't bad, I guess, but I was hoping to get more life out of the device. I'm going to switch over to using a boundary mic for recording lectures since it won't have the potential transmission issues and will hopefully pick up other voices in the room more successfully.
D**.
usb mic
its a good mic but the my usb part was fragile but they worked with me fully
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