where can I get the datasheet? I tried a google search of the part number but came up with nothing.

I found a very similar data sheet. https://www.cui.com/product/resource/cmb-6544pf.pdf

Can I use these to listen to a conversation and how would I hear it

These are not recommended for voice or music. They would work, but the sound quality would be very very poor.

What voltage does the microphone need ?

Start low, 3v or so and go up as needed

How do you tell which lead is plus and minus?

3 lines on the negative side, you will see what I mean

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10Pcs Cylindrical Electret Condenser Microphone Pickup with 2 Pins 9×7mm for Arduino (Pack of 10) CYT1013

10Pcs Cylindrical Electret Condenser Microphone Pickup with 2 Pins 9×7mm for Arduino (Pack of 10) CYT1013

Product ID: 53671234

Details

Brand
Cylewet
Color
Black Silver
Compatible Devices
Personal
Connectivity Technology
2-pin
Connector Type
XLR
Included Components
microphone

🎤High sensitivity -48 to -66dB

📏9×7mm ultra-compact size

🔋Low power max 500µA

€ 12.29

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Description

🎧 Tiny Mic, Massive Impact: Elevate Your Sound Game Instantly!

PRO GRADE SIGNAL QUALITY - 58dB+ S/N ratio ensures noise-free, professional audio
PLUG PLAY COMPATIBILITY - 2-pin interface optimized for Arduino and DIY electronics
PRECISION MINIATURE DESIGN - Sleek 9mm diameter fits any compact project
CRYSTAL CLEAR AUDIO CAPTURE - Wide 50Hz–20kHz frequency range for rich sound detail
ENERGY EFFICIENT PERFORMANCE - Consumes less than 500µA for longer device uptime

This pack of 10 cylindrical electret condenser microphones features a compact 9×7mm form factor, high sensitivity (-48 to -66dB), and a broad frequency response (50Hz to 20kHz). Designed for Arduino and DIY projects, each mic operates efficiently at max 500µA current with a 2-pin connection, delivering clear, professional-grade audio with a signal-to-noise ratio above 58dB.

Specifications

ASIN	B01N0VMN9P
Antenna Location	Singing, Streaming
Audible Noise	58 db
Best Sellers Rank	#37,724 in Electronics ( See Top 100 in Electronics )
Brand	Cylewet
Built-In Media	microphone
Color	Black, Silver
Compatible Devices	Personal Computer, Laptop, Smartphone
Connectivity Technology	2-pin
Connector Type	XLR
Customer Reviews	4.4 out of 5 stars 246 Reviews
Frequency Response	20 KHz
Hardware Platform	Arduino
Item Weight	0.86 g
Manufacturer	Qianxin
Mfr Part Number	CYT1013
Microphone Form Factor	Mini
Model Name	RS454
Model Number	7545900980
Number of Channels	1
Number of Items	10
Polar Pattern	Unidirectional
Power Source	3V
Recommended Uses For Product	Singing, Streaming
Signal-to-Noise Ratio	58 db
Special Feature	Stand
UPC	717850057732

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TrustScore 4.5 | 7,300+ reviews

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€ 12.29

Duties & taxes included

In stock

Sold byAmazon FranceDelivered 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 France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Fantastic experience overall. Will recommend to friends and family.

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