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K037B FAQs

05 Jul, 2019

K037B FAQs

Self Troubleshoot before proceed any further. 

Please include the test result when resorting for email support.

1.Using fresh batteries for transmitter. After switching it on, does mic screen turn solid on?

2.If receiver indicator blinks green, use the same freshness of AAA batteries. Then does it stay solid red?

3.If indicator still flashes green, does reset help?

4.If reset doesn't work, before reset, are both receiver and transmitter off? During reset: does mic screen blink and 564MHz appear?   

5.For smartphone, is it connected through the included PHONE adapter. For camera, is it CAMERA adapter? If speaker/smartphone/camera volume is turned up in a decent level?  

 

Q: What type of battery does it use?

A: The transmitter (the body-pack device) needs 2pcs AA 1.5V batteries, while the receiver (the part being plugged into the speaker) uses 2pcs AAA 1.5V batteries. 

 

Q: How long is the battery life of this K037/K037B?

A: Generally it could last 5 to 6 hours with fresh alkaline batteries or fully charge rechargeable batteries. But different batteries vary a bit because of different capacities. We suggest you to try other brand new batteries to find the most durable ones. And please turn off both the transmitter and receiver to save power between services. Also, take out the batteries if you don’t use the mic for a long time. 

 

Q: Can I use 2 of these with one receiver? Can I plug other XLR lav mics into transmitter?

A: No, you can't.

 

Q: Is the mic compatible with my device?

A: 

Click to check out more specific devices that are compatible with K037B  

Speaker with 1/4" MIC input It will perfectly fit. Though you still may need to change the speaker when using with external mic. For example, to switch the "Line In" to "Microphone", or you need to switch from FM Mode to other proper mode for using the mic. 
Speaker with only Line-in  It requires the signal that has higher level of power than a mic signal has. Mis-match will result in low sound. So we don't recommend to use the mic with the small speakers.
Cameras/Camcorders Make sure there is 3.5mm microphone input jack on your camera. Because some cameras only have an  "audio out" jack, not an "audio in" jack. And whatever kind of camera USB jack is not compatible, which does not allow audio input. 
Mobiles The (1/4'' to 3.5mm TRS) included adapter is for cameras only, it is NOT compatible with smartphone.
You'll need to buy a different adapter cable from our site if you want to use the mic with smartphone that still has 1/8" jack. 

Note: make sure the transmitter has paired with the receiver before you plug the system to any device. (Receiver light remains RED, that means connected.)

 

Q: Do I need speakers or an amp?

A: Sorry it doesn't come with speaker or have built-in speaker, so you will need to find a speaker or PA system. We suggest to use the mic with the speaker that has 1/4'' mic input and mic volume control.

 

Q: Which speaker is fits?

A: Most speakers that have 1/4” Mic input are perfect for using with the mic system. For particular speaker model, you can click the photo below to check out.

 

Q: The receiver blinks green and turn off automatically!

A: It's just because the batteries run out of power. You can replace them with a new pair AAA size batteries.

 

Q: Doesn't work. Any help with this?

A: 

Transmitter or receiver could not turn on Use 1.5V Alkaline batteries. Make sure the battery polarity is correct and the battery door of receiver is closed completely.
Receiver light is green, meaning it doesn't pair with the transmitter Change new batteries and follow the resetting process in video below to pair the devices manually http://bit.ly/k037037bproblemsolving
Receiver light is red,but there is no sound projecting  Check if the plug of the receiver is loose (visible); change to other frequency; use the mic in the recommended distance (60 feet) and test the mic with another device if possible.

 

Q: Why the volume  was so low (not loud enough)?

A: We recommend to connect the mic to the 1/4'' speaker input designed for a mic connection. If your speaker has only 3.5mm line or aux in which requires the signal that has higher level of power than a mic signal has, the mic will be low and hard to be heard.
The sensitivity of the lapel mic and headset mic are the same. The reason why the headset mic is louder is because it could be positioned much closer to the mouth than the lapel can be. So I suggest you to turn up the mic volume when you change to the lapel mic.

 

Q: The headset mic picked up my breathing.Any suggestions?

A: It's an unidirectional mic, so it will primarily pick up voice of person right in front of it. We suggest to adjust the position of the headset mic, 30 to 45 degree angle off axis to your mouth, then it won't pick up too much breath pops.

 

Q: How can I avoid hissing?

A: Compatibility and interference issue are major cause for the hiss noise.
Except for the interference from the environment (mobiles, computer, TV, game console, even the lights), there are some other factors.
For example some input jack on the camcorder is very sensitive that will cause the hiss. A powerful, loaded desktop PC would produce very strong EMI. A defective adapter or poor connection between connecting cables will also cause hiss. 
So please try to test the mic with other speaker directly (not using any adapter) and compare the result. Then you will know whether the hiss is caused by the compatibility issue.

 

Q: How can i reduce feedback??

A: Before the setup, turn down the volume control of speaker.

When plugging receiver in, do not place the mic directly in front of speaker.

During the use, a)Slowly adjust the volume setting of speaker. b)Instead of speaker, please position the microphone close to your mouth for loud and clear sound. c)And keep the mic at least 9 feet away from speaker for perfect effect. d)Try to use the headset mic if the lapel mic causes the feedback noise.

 

Q: Is there a way to get a replacement receiver part only for it?

A: Yes, we sell the lapel mic, headset mic, transmitter and receiver separately. Feel free to contact our customer support and confirm the version of the replacement part so that we could send you the link. 

 

Q: 1.I can’t pair them and it doesn't work; 2.could you word from word tell me how to reset the microphone?"

A: You can find step-by-step tutorial videos for above question on K037/037B problem-solving playlist: http://bit.ly/k037037bproblemsolving

Leave a comment
69 comments

FIFINE MICROPHONE

October 31, 2019

Hi @Afshin Farahpour sorry about the issue, you still need to have a smartphone adapter, the package included one is for camera, which uses a TRS connector. A smartphone adapter needs to be TRRS to make the mic work.
You can order one from our accessory website, and it will work well with your Samsung S8+
https://fifine.cc/product/fifine-smartphone-adapter/

parkash Chand

November 01, 2019

Hi team

we are using microphone model k037b
setup has been done, but wireless unable to record the voice

please provide the solutions as soon as possible.

FIFINE MICROPHONE

November 02, 2019

Hi @parkash Chand first off, the problem could lie in the setup itself, the system uses a TRS connector, that means when you plug it into a device without a jack that is specific for microphone, it won’t work. Such as the devices of smartphone, tablet, laptop, etc.
Next, if you hook up with camera, the mic is compatible. Then we should look at the power and sync issue. Did receiver lighted up green or did it flash?
We will need these two info before we can proceed to fix the issue.

Larry

November 04, 2019

What is the actual Output Impedance of the K037B Wireless Microphone?

FIFINE MICROPHONE

November 04, 2019

Hi @Larry it’s 1-1.9K ohm, it’s low Z output.

Donald McKenzie

November 24, 2019

Can these mics be run through a soundboard?

Ricardo Barbosa

November 24, 2019

Hi, I just purchased the K37, and the receiver light is only slowly blinking green. Never becomes red. I already tried new batteries, and factory reset, and no way the receiver pairs with the transmitter. Anything else I can do?

Thank you

FIFINE MICROPHONE

November 25, 2019

Hi @Donald McKenzie it’s plug and play on mixer that has XLR and 1/4" combo jack. If only XLR mic in, you can also consider to hook up through the 1/4" Line in jack.

FIFINE MICROPHONE

November 25, 2019

Hi @Ricardo Barbosa sorry about the issue. It could be the product issue if the reset still didn’t help. But just in case there’s something miss in the process, do you mind bringing back to factory setting for one more time.
Three thing you may need to pay a bit more attention to. Firs off, the units should be off. Next, the transmitter screen should flash and the 564 frequency should be seen on it. At last, the receiver should blinks green and red for three time when you turn it on.

Ian Crundwell

November 26, 2019

The headset is loose on my head. Can I bend the frame or do I risk breaking it? How can this be adjusted to tighten up on the face?

FIFINE MICROPHONE

November 27, 2019

Hi @Ian Crundwell yes there’s such risk because the band is not quite bendable. But if you really need to have the headset tightened on your face, it seems the only way it’s to bend it. If it broke, we could provide a replaced headset.

Dimitris Daniil

December 16, 2019

Hi, can you please give the pinout of the transmitters microphone port?
I have seen that other manufacturers, using the 3 pin plug, use pin 1 as shield and pin 2 an3 shorted or joined with a resistor. What is the case with our K037?

Regards

FIFINE MICROPHONE

December 17, 2019

Hi @Dimitris Daniil we’re not sure what kind of pin out you want to see. But the wiring you mentioned would be the same case for the transmitter mini XLR connector.

Damon Smith

December 31, 2019

How do you get the frequencies down to the lower range? Mine is set at the highest one, but won’t connect properly. I’ve reset it, but it keeps going back to the highest one. It works for about 3 seconds, then the green light comes back on. New batteries, and this is a new problem, hoping the lower frequencies will solve it.

FIFINE MICROPHONE

January 03, 2020

Hi @Damon Smith sorry for the issue and the late reply. It sounds like the issue of top button on the transmitter. And thus the frequency was set at the highest, the reset was not actually done and the units remained unpaired. But we may still need to confirm, when you click the top button for once, did the frequency figure on transmitter display change? Or you have to click several time to make 1 MHz change?
You can also contact us on Facebook page: https://www.facebook.com/FifineStore or support email: webfifinemicrophone.com with the info we need and the order number. We have dedicated after-sales service on those channel.

Leanne

January 10, 2020

Transmitter or receiver could not turn on – I used new batteries and it is completely shut and won’t turn on.

FIFINE MICROPHONE

January 12, 2020

Hi @Leanne sorry about the issue, since you have contacted our support email, I’m sure our after-sales colleague will take good care of your case. Hope it will get fixed soon!

Peter Babbington-Fowles

January 12, 2020

Hi I just bought one of these

Q1. Will it work with the MiPRO/ACT 2401 receiver?

Q2. How do I change the transmit frequency?

FIFINE MICROPHONE

January 13, 2020

Hi @Peter Babbington-Fowles the ACT 2401 doesn’t have 1/4" mic input, and there’s no way to synce K037B transmitter with it, so it wont work. You can click the top button for once to change frequency.

Vishesh

January 17, 2020

Hi i bought it few days back ot was working fine but now the transmitters screen and screens back light is not working the transmitter is working fine though. Please suggest what is wrong with it. And how do i avail my warranty.thanks

FIFINE MICROPHONE

January 19, 2020

Hi @Vishesh sorry about the issue and late reply, since you have contacted our support email, I’m sure our after-sales colleague will take good care of your case. Hope it will get fixed soon!

Paula

January 30, 2020

I bought the K037B to use with my iPhone XR. I can’t seem to make the mic pick up sound. I have the lightning cable, and use the “video” recorder that comes with the phone. I can see that the units are paired fine, but still no sound. Do I need an app on my iphone? I’ve looked at all trouble shooting and nothing fits my scenerio.

FIFINE MICROPHONE

January 31, 2020

Hi Paula according to your description, it seems like just the problem of the 1/4" to 1/8" adapter. When did you buy the K037B? We asked so because only the recent batch of K037B comes with the phone adapter. Such adapter uses the TRRS plug, which has three black loops on the connector. If you just bought the K037B, then make sure you use the phone converter, which has a smartphone label. If there still no sound, please contact us at webfifinemicrophone.com

Marquetta

January 31, 2020

This will not pair. New batteries could it be something else.

FIFINE MICROPHONE

February 01, 2020

Hi Marquetta, with the new batteries, the receiver should keep solid light, doesn't it? If it's solid green, you may want to check another time of the reset process. 1.Both unti (receiver and transmitter) should be off at the very beginning. 2.Transmitter should show 564MHz on display and screen should keep flahsing. 3.When receiver was turned on and before the confirm step on transmitter, the receiver should flash red and green in alternative for a few times. If that's the exact process of your reset, you can contact us at webfifinemicrophone.com with the test info and order number. We would help out.

Paula

February 02, 2020

You responded, but the contact you gave doesn’t work.
Yes I bought it 2 weeks ago, and the adapter for phone was in there, and i used it and still no sound.
I bought the white apple adapter and used your adapter so please help!

Hi Paula according to your description, it seems like just the problem of the 1/4" to 1/8" adapter. When did you buy the K037B? We asked so because only the recent batch of K037B comes with the phone adapter. Such adapter uses the TRRS plug, which has three black loops on the connector. If you just bought the K037B, then make sure you use the phone converter, which has a smartphone label. If there still no sound, please contact us at webfifinemicrophone.com

FIFINE MICROPHONE

February 03, 2020

Hi Paula it's my bad, it should be webfifinemicrophone.com our support email. OK, now the setup is totally fine. When you say no sound, do you mean you want to hear the audio coming out of your iPad while you’re talking to the mic? If yes, I’m afraid that it will not work. Because when you plug in the Apple adapter, the internal speaker of iPad is disable automatically.
And because of the same reason, if you just want hear the audio after you use the mic to record, you still have to unplug the lightning adapter first, and then play the recorded video.

Pete Patterson

February 11, 2020

Hi I have the K037 wireless microphone which seems to work great however I was concerned as to why I have the headphones and not the lapel mic which is what I actually prefer and need. Is it possible for you to send me the lapel microphone.

Thanks Pete

FIFINE MICROPHONE

February 11, 2020

Hi @Pete Patterson you can order a spare lav mic here: https://fifine.cc/product/spare-fifine-lavalier-microphone/

Jian Zhang

March 14, 2020

Hi,
I bought the K037B and found it won’t connect to my Android phones, which are Xiaomi and Blackberry. I have the TRRS cable for phone and the TRS for camera. Can I use the TRRS to connect my Mac book pro, which I guess has a TRRS plug in?
Thanks!

FIFINE MICROPHONE

March 16, 2020

Hi Jian Zhang.
If you wanna use the cellphone with your microphone, you need to first use the 1/4’’ to 1/8’’ TRRS adapter-for Phone, then download the app “open camera” and set the external microphone as default input device.
If you wanna use the mic on the Macbook pro, you need the 1/4’’ to the USB interface.

Wanjira Njenga

April 03, 2020

What is the best frequency for my transmitter. I am getting a “woshing” sound feedback.

FIFINE MICROPHONE

April 06, 2020

Hi Wanjira Njenga. It sound like the background noise.
First off, you can put it the right position in case that the mic accept the sound while breathing.
If budget allows, you can buy some dead cat, the windscreen muff (something like the one below), which does a better job at wind noise rejection than the foam cover. You can check out the video below to see if that rejection effect would be enough for you.
Video: https://www.youtube.com/watch?v=stpldsNvmQw&t=29s
Dead cat: https://www.amazon.com/eBoot-Microphone-Windscreen-Lavalier-Microphones/dp/B01E4ZMTEG/ref=sr_1_10?keywords=dead+cat&qid=1571205257&sr=8-10

Chris Dunlap

April 16, 2020

I am looking to purchase this item asap, the FIFINE WIRELESS LAVALIER/HEAD-WORN MICROPHONE FOR PLUG & PLAY SETUP WITH SPEAKER, CAMERA-K037B, but I have one question.

Would I be able to mic up an athlete similar to how other broadcast companies mic up player to get on field/court chatter? Is the mic pack durable enough to withstand being on a player for the length of a contest?

FIFINE MICROPHONE

April 16, 2020

Hi Chris Dunlap,
Sorry about the issue, since you have contacted our support email, our after-sales staff should take care of your case. Hope it will be fixed soon!

Joe

May 02, 2020

Im having some issue with the K037.
1. The transmitter indicator light turns red and works fine.

2. A few second later, the transmitter indicator light turn green and it stop transmitting. Why?

3. OFF the transmitter and ON it again, it just work in a few second and the problem happen again.

Please advise

Thank you

FIFINE MICROPHONE

May 05, 2020

Hi @Joe it’s quite likely to be just the power issue. Replaceing with fresh batteries would help.

Kyle

May 22, 2020

I spent 30+ min not understanding why there was no audio, only to find out i was using the wrong adapter. There are 2 of them, and only one works. Even if you think you have the right one, swap em out just for fun!

FIFINE MICROPHONE

May 22, 2020

Hi @Kyle sorry for not making the label or the description much clearer! Sorry for your time wasted on figuring out. We will improve to make the difference more noticeable!

Sherry Rockey

May 22, 2020

The head set is far too big for my head. How do I adjust it so it will fit securely on my head? I don’t see any instruction on how to best position the headset. Thanks.

FIFINE MICROPHONE

May 23, 2020

Hi @Sherry Rockey we’re sorry but um, it’s not adjustable.

Dylan Kitchener

June 21, 2020

I have lost my manual for The KO37B microphone is it possible to see the manual on the internet or can I buy another one thank you

FIFINE MICROPHONE

June 24, 2020

Hi @Dylan Kitchener. We just upload the manual on the Google Drive, you could download it directly on the website below.
Link: https://drive.google.com/file/d/1KhVPRq5cXJRqdw_Cq5CsbZPejQi4YQJ9/view?usp=sharing

Jackline Daneshrad

June 26, 2020

I am having difficulty with my voice using model Ko37B over music on Zoom using my MAC laptop. Any help on how to increase the volume please.

FIFINE MICROPHONE

June 30, 2020

Hi @Jackline
There are a few steps to test your microphone and change the volume.
Log in to the Zoom client → Click your profile picture then click Settings. → Click the Audiotab. → Follow the sections below to test your speaker or microphone.
A. In the Microphone section, you will see the green Input Level bar move when Zoom is picking up audio.
B. Click Test Mic to test your microphone.
C. Your audio will start recording. Click Recording when you are done and it will play back. You can select another microphone from the menu or adjust the input level.
D. Check Automatically adjust microphone settings if you want Zoom to adjust the input volume automatically.
If you want the more detail instruction, please check out the website below.
Link: https://support.zoom.us/hc/en-us/articles/201362283-Testing-computer-or-device-audio

Thomas Clark

July 01, 2020

I would like to use the transmitter with my electric guitar. Is there an adapter or wiring diagram I can use to connect my guitar output to the transmitter input.

FIFINE MICROPHONE

July 03, 2020

Hi Thomas,
If you are goona use the transmitter with the electric guitar, you won’t need the wireless microphone but the bluetooth transmitter and receiver.

Thomas Clark

July 03, 2020

Thomas Clark
July 01, 2020
I would like to use the transmitter with my electric guitar. Is there an adapter or wiring diagram I can use to connect my guitar output to the transmitter input.

FIFINE MICROPHONE
July 03, 2020
Hi Thomas,
If you are goona use the transmitter with the electric guitar, you won’t need the wireless microphone but the bluetooth transmitter and receiver.
…………..
This does not answer my question, do you have the pinout for the mic input on the transmitter, or sell an adaptor cable? What do you mean by blue tooth transmitter and receiver, is this something you sell, if so what model number is it?

FIFINE MICROPHONE

July 04, 2020

Hi @Thomas Clark. Um, the product you have purchased is the K037B and sorry that the wireless microphone K037B cant meet your need.
You need to purchase a bluetooth transmitter which can convey the guitar sound to the receiver. And we dont sell the bluetooth tranmitter, but you can easily search for that with the keyword “guitar sound transmitter” on Amazon.

Zoltan

July 05, 2020

What are the dimensions of the receiver?

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