Does this work with a PS4 controller on pc?

Yes. You need to hold the share and ps button, once it starts blinking it's ready to pair with a PC

I do not understand, does it act as a receiver or a transmitter when plugged into your PC or both ?, forgive my ignorance but this is all new to me.

It acts as transmitter, so that you can connect devices to your PC such as phones and other devices

Will it work in a tv soundbar ?

It's likely this would work. I use my soundbar for listening to my phone AND my PC. If your phone can connect to your sound bar via Bluetooth, it's likely your PC would too :)

My pc is connected to my phone but my phone isnt connected to my pc?

On Windows, the phone will not connect to the pc unless needed, it is only paired. For example, when you send a file you select the Bluetooth device then it will send it.

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TP-Link UB4A Bluetooth USB Adapter for PC, Nano Bluetooth Dongle

Product ID: 159011475

Details

Brand
TP-Link
Colour
Black/White
Compatible Operating System Family
Windows
Compatible devices
Desktop
Data link protocol
Bluetooth USB
Data transfer rate
3 Megabits Per

💻Plug & Play driver-free for Win 8+

📏Nano-sized ultra-compact design

🔋Bluetooth 4.0 with Low Energy (BLE)

MOP$75

Duties & taxes included

In stock

Sold byAmazon MacauDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔗 Tiny dongle, massive Bluetooth freedom—stay connected, stay ahead!

EFFORTLESS PLUG PLAY - No drivers needed for Windows 8 and above—just plug in and instantly connect up to 7 Bluetooth devices.
EXTENDED WIRELESS RANGE - Enjoy stable, lossless audio and data transmission up to 20 meters—freedom to move without losing connection.
POCKET SIZED POWERHOUSE - Ultra-compact nano design fits discreetly in any USB port—leave it plugged in, whether at home or on the go.
WIDE COMPATIBILITY SPECTRUM - Supports Windows XP through Windows 10 and backward compatible with Bluetooth 3.0 and earlier versions.
SEAMLESS BLUETOOTH 4 0 CONNECTIVITY - Experience ultra-efficient wireless with the latest BLE tech for longer battery life and faster pairing.

The TP-Link UB4A Bluetooth USB Adapter is a nano-sized, driver-free Bluetooth 4.0 dongle designed for Windows PCs. It supports up to 7 devices simultaneously, offers backward compatibility with older Bluetooth versions, and delivers a reliable wireless connection up to 20 meters. Perfect for professionals seeking seamless, portable Bluetooth connectivity without the hassle of drivers.

Specifications

ASIN	B07YLDVM6B
Best Sellers Rank	190 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 1 in Bluetooth Network Adapters
Box Contents	UB4A
Brand Name	TP-Link
Color	Black/White
Compatible Devices	Desktop
Compatible Operating System Family	Windows
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (101,996)
Data Link Protocol	Bluetooth, USB
Data Transfer Rate	3 Megabits Per Second
Global Trade Identification Number	06935364053307
Hardware Interface	USB
Item Dimensions L x W x H	15L x 7W x 19H millimetres
Manufacturer	TP-Link
Manufacturer Part Number	UB4A
Minimum Required Operating System Version	Windows XP
Model Number	UB4A
Number of Items	1
Number of Packs	1
Product Warranty	1 year manufacturer
Unit Count	1.00 count

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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.

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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The delivery time was excellent, and the packaging was secure.

2 months ago

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MOP$75

Duties & taxes included

In stock

Sold byAmazon MacauDelivered 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 Macau.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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