I have wireless earphones for the car ... can I use this adapter on a plane with my earphones and receive sound?

If you are using Bluetooth to connect your wireless headphones to your car or Music player then this airplane audio adapter will not allow you to connect to the plane media system. You have two options, get a pair of wired earphones (or if your wireless earphones have the option to use a wire then use that wire), and then use this Airline audio adapter to connect to the in flight media system. Or you can check if the airlines you are flying on has media system that allows bluetooth pairing (Although I would guess most don't have this option).

will this fit omtp jack? or doe sit need a converter jack?

Sorry, but I know almost nothing about the OMPT Jack. I used it in series with my Bose Quietcomfort 20 headphones to adapt to the airline sound system. Since the OMPT and the AHJ jacks have the same L/R connections and don't support the microphone function it may not matter if the ground contacts are in different locations.

Do you have an adapter that turns a single headset mic phone jack into two jacks , one for mic and the other for headphones?

The closest thing to that is the following item, is this what you meant? https://www.amazon.com/dp/B06XPJBCQ8?ref=myi_title_dp

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2pcs Gold Plated Airplane Flight Headphone Adapters - Use Own Headphones with Plane's In-Flight Entertainment Systems - Great Sound on all Planes - by Mobi Lock

2pcs Gold Plated Airplane Flight Headphone Adapters - Use Own Headphones with Plane's In-Flight Entertainment Systems - Great Sound on all Planes - by Mobi Lock

Product ID: 263750992

Details

Colour
Black
Compatible devices
Headphone
Connector type
Auxiliary
Item dimensions L x W x H
8 x 8 x 1.1
Specific uses for product
Helmet

🎧Stereo channel separation

🔊Gold-plated for pristine sound

✈️Universal 2-prong airplane jack fit

Description

🎧 Elevate your in-flight vibe—because your ears deserve first class.

FLY YOUR OWN SOUND - Seamlessly connect your premium headphones to any plane’s dual audio jack for unmatched in-flight entertainment.
CRYSTAL CLEAR AUDIO - Gold-plated connectors ensure zero signal loss and rich, immersive sound quality on every flight.
PLUG PLAY FREEDOM - No installation needed—just plug into the seat’s audio socket and enjoy your personalized soundtrack at 30,000 feet.
UNIVERSAL COMPATIBILITY - Works with all stereo-type 3.5mm headphone jacks, making it the must-have adapter for frequent flyers.
COMPACT TRAVEL ESSENTIAL - Lightweight and durable design fits effortlessly in your carry-on without adding bulk or hassle.

The Mobi Lock 2pcs Gold Plated Airplane Flight Headphone Adapters convert dual airplane audio jacks into a standard 3.5mm headphone connection, enabling you to use your own headphones with superior stereo sound quality. Featuring gold-plated connectors for optimal audio transfer and a compact, durable design, these adapters require no installation and fit most aircraft entertainment systems, making them an essential travel accessory for audiophiles and frequent flyers alike.

Specifications

ASIN	B00NLL1HHU
Best Sellers Rank	#9,958 in Electronics ( See Top 100 in Electronics ) #110 in Headphone Adapters
Brand	Mobi Lock
Color	Black
Compatible Devices	Headphone
Connector Type	Auxiliary
Customer Reviews	4.2 4.2 out of 5 stars (4,315)
Finish	Matte
Item Dimensions	8 x 8 x 1.1 centimeters
Item Weight	0.02 Ounces
Manufacturer	Lock Sourcing Ltd
Mfr Part Number	MOL-MLT-UNI-ACC-AIR-ADA-AUD-BLK
Model Number	USA-MOL-MLT-UNI-ACC-AIR-ADA-AUD-BLK
Number of Items	2
Number of Ports	1
Package Quantity	1
Power Plug Type	No Plug
Smart Home Compatibility	Not Smart Home Compatible
Specific Uses For Product	Helmet
Warranty Type	Limited

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