What are the exact 20 frequencies on these units please. what is the mw output of the transmitters please.?

Frequency is 565 to 584 Power 10db/10MV

I have a sony srs xb20 speaker can i use your system if i use a 1/4 to 3/8 adapter to plug into the Sony unit? if not why not?

No, you can't. Because this receiver output is about the same level as a wired mic. It must be plugged into a 1/4'' speaker input designed for a mic connection. If your speaker has only 3.5mm line inputs which require a higher level signal than a mic provides, the mic will be not suitable to be used with it, even you add an adapter. The sound will be soft and hard to be heard.

Can I plug the receiver into my iPhone, audio mixer, or Mac to record the audio?

Sorry, it works with only audio mixer that has 1/4" mic jack. If you need a mic to use with Mac, we have the K031 (Asin: B074C125TN) USB wireless lav mic. But neither of them will work with iPhone.

can it be used for singing

It will be more suitable for speaking than singing. We would recommend the handheld mic K025(ASIN:B0795PNCBG) or K035(ASIN:B01MT6AAIC) for singing. All these mics need to work with speakers/amps that has 1/4'' mic input.

Fifine Wireless Microphone For Teaching Preaching And Public Speaking K037b

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Description

🎙️ Elevate your voice, ditch the wires, own the room.

BROAD COMPATIBILITY - Works flawlessly with cameras, smartphones, PA systems, and mixers via included adapters.
DUAL MIC FLEXIBILITY - Switch between discreet lavalier or secure headset mics to match your speaking style and environment.
PRO GRADE AUDIO CLARITY - Metal collar clip and windscreen reduce noise, delivering professional sound for presentations and recordings.
EFFORTLESS WIRELESS SETUP - Unique paired ID sync means plug-and-play simplicity—wireless mic setup as easy as wired.
SEAMLESS MULTI FREQUENCY OPERATION - Choose from 20 UHF channels to avoid interference and ensure crystal-clear audio every time.

The FIFINE Wireless Microphone System K037B offers 20 selectable UHF frequencies for interference-free wireless audio up to 65 feet. It includes both a headset and lavalier microphone, paired with a bodypack transmitter and receiver featuring 1/4" and 3.5mm adapters for versatile compatibility with cameras, smartphones, and PA systems. Designed for easy plug-and-play use with clear LCD monitoring, this battery-powered system delivers professional-grade sound clarity ideal for teaching, preaching, presentations, and content creation.

Specifications

ASIN	B076F5W8Q5
Antenna Location	Indoor/Outdoor
Audible Noise	58 Decibels
Audio Sensitivity	95 Decibels
Best Sellers Rank	#8,858 in Musical Instruments ( See Top 100 in Musical Instruments ) #171 in Wireless Lavalier Microphones & Systems
Brand	FIFINE
Built-In Media	Headset microphone, Clip-on Lavalier microphone, Body pack Transmitter, Receiver with 1/4'' Plug, Solid metal collar clip, Windscreens, 1/4'' to 1/8'' adapter-cable, 1/4'' to 1/8'' TRS adapter cable, Female 1/4'' to 1/8'' TRS adapter converter cord
Color	Black
Compatible Devices	Amplifier, Camera, Smartphone, Speaker
Connectivity Technology	Wireless
Connector Type	1/4" TRS
Customer Reviews	4.1 out of 5 stars 3,610 Reviews
Enclosure Material	Metal
Frequency Range	565.0 MHz - 584.0 MHz
Frequency Response	15 KHz
Hardware Platform	Camera, Smartphone
Item Dimensions	2.68 x 6.38 x 7.95 inches
Item Type Name	Wireless Microphone System with Headset & Lavalier Lapel Mics,2pcs(receiver and transmitter)
Item Weight	9.9 Ounces
Manufacturer	FIFINE
Mfr Part Number	ABCD170019
Microphone Form Factor	Lavalier
Model Name	wireless lapel microphone
Model Number	K037B
Number of Batteries	2 AAA batteries required.
Number of Channels	1
Polar Pattern	Unidirectional
Power Source	Battery Powered
Recommended Uses For Product	Indoor/Outdoor
Signal-to-Noise Ratio	58 dB
Special Feature	Clip
UPC	728290254117
Unit Count	1.0 Count
Warranty Description	N/a.

Reviews

A**Y

7.07.2018

D**Y

11.06.2020

B**S

13.04.2020

T**N

5.12.2018

M**.

8.04.2019

S**N

13.04.2019

M**R

19.12.2019

T**N

19.02.2020

A**I

1.12.2022

R**A

9.12.2018

J**S

22.03.2026

K**A

8.11.2021

S**N

1.10.2019

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

₪257

Duties & taxes included

In stock

Sold byAmazon IsraelDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Israel.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

FIFINE Wireless Microphone for Teaching, Preaching and Public Speaking.(K037B)

Details

Details

Description

Specifications

Reviews

Common Questions