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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🚀 Elevate your wireless game with nano-sized power!

RELIABLE LIGHTWEIGHT - At just 30 grams, this dongle delivers high performance without weighing down your setup.
POCKET SIZED POWERHOUSE - Ultra-compact nano design fits discreetly into any USB port—carry your connectivity anywhere without bulk.
UNIVERSAL COMPATIBILITY - Backward support for Bluetooth versions 3.0, 2.1, 2.0, and 1.1 ensures your legacy devices stay connected.
CUTTING EDGE BLUETOOTH 4 0 - Experience low energy consumption and long-range wireless performance with the latest Bluetooth 4.0 tech.
SEAMLESS CONNECTIVITY ZERO HASSLE - Plug & play compatibility with Windows 10/8.1/8/7/XP means instant Bluetooth access—no drivers needed.

The TP-Link UB4A Nano Bluetooth 4.0 USB Adapter offers cutting-edge Bluetooth 4.0 with low energy technology in an ultra-compact form factor. Compatible with a wide range of Windows operating systems and backward compatible with older Bluetooth versions, it provides plug-and-play convenience without the need for drivers. Its lightweight, nano-sized design ensures portability and reliable long-range wireless connectivity for PCs, laptops, and desktops.

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RM37

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Brand	TP-Link
Product Dimensions	1.5 x 0.7 x 1.9 cm; 30 g
Item model number	UB4A
Manufacturer	TP-Link
Colour	Black/White
Operating System	10/8.1/8/7/XP
Are Batteries Included	No
Item Weight	30 g
Guaranteed software updates until	unknown

TP-Link UB4A Nano Bluetooth 4.0 USB Adapter for PC Laptop Desktop Computer, Long Range Bluetooth Adapter Compatible with Windows 10/8.1/8/7/XP, Dongle/Receiver, Plug & Play

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