Can this adapter be used to connect wired headphones to a smart tv that does not have anheadphone jack?

I’m not sure. I tried to connect a 3.5 MM plug Of a portable CD player to the USB jack in my car ( which doesn’t have a 3.5 MM Jack)… it did not work.

What USB version is this adapter? 2, 3.0, 3.1 ?

Standard USB A This is a matter of a physical connection. Tells you this right in the listing. Audio doesn't need a lot of high speed. It won't plug into a pure USB C connector. Use Google to find a graphic of the various connectors on a PC and Mac and get familiar with the distinctive plug shapes. :)

Will this work on an airplane?

I was extremely disappointed with this product. Throu the computer it only produced static however this devise, https://www.amazon.com/Plugable-Headphone-Microphone-Aluminum-Compatible/dp/B00NMXY2MO/ref=sr_1_1_sspa?keywords=plugable+usb+audio+adapter+with+3.5mm&qid=1692929252&sprefix=plugable+usb+audio%2Caps%2C205&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&psc=1 worked perfectly and I would assume work well on an airplane for sudio from from your device

Does it work with 4 pole to 5 pole cord?

It is a standard USB-A male connector. Not sure what you are asking, but it works very well for a PC without a 3.5mm jack for a headphone. It also supports the microphone input if you are use that type of headset. In my case, I use Bose headphones on my notebook PC at work for Zoom and Teams meetings.

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USB to 3.5mm Audio Jack Adapter, External Sound Card Converter Compatible with Headset, PC, Laptop, Mac, Desktops, Linux, PS4 and More Devices (Grey)

Product ID: 355478355

Details

Compatible devices
Laptop
Brand
MCSPER
Hardware interface
USB
Audio output mode
Stereo
Platform
PlayStation 4

🎧3.5mm TRRS port

🎶High-definition audio

🔌Plug and play

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎤 Elevate Your Audio Game with Ease!

DURABLE DESIGN - Crafted with a premium metal casing and braided cord for longevity.
HASSLE FREE SETUP - No drivers or external power needed—just plug and enjoy!
PREMIUM SOUND QUALITY - Experience crystal-clear audio with advanced DAC Smart Chip.
SEAMLESS CONNECTIVITY - Effortlessly connects USB to 3.5mm audio devices.
UNIVERSAL COMPATIBILITY - Works with a wide range of devices including PC, Mac, and PS4.

The MCSPER USB to 3.5mm Audio Jack Adapter is a versatile external sound card converter designed for seamless audio connectivity across various devices. With its plug-and-play functionality, premium audio quality, and robust compatibility, this adapter is perfect for professionals on the go, ensuring you never miss a beat whether at the office or home.

Specifications

ASIN	B099FLWJD3
Audio Output Mode	Stereo
Brand	MCSPER
Compatible Devices	Personal Computer, Laptop, Macintosh, Speaker, Headphone, Gaming Console, Smartphone
Customer Reviews	4.3 out of 5 stars 2,795 Reviews
Hardware Connectivity	USB
Hardware Interface	USB
Hardware Platform	Personal Computer
Manufacturer	MCSPER
Maximum Sample Rate	48 KHz
Model Number	d3757ee6-29be-435b-b24c-8b92df691561
Platform	Android, Linux, Mac, Mac OS X, PlayStation 4, Windows 10, iOS
Signal-to-Noise Ratio	120 dB
Surround Sound Channel Configuration	5.1
Unit Count	1.0 Count

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