I'm not really tech-savvy. My laptop has bluetooth 5.0 and I wanted to buy Kopfhöhrer because the cable bothers me pretty, so looked headphone found now stood there: Note: when connecting to a TV or PC, an additional Bluetooth transmitter is required… First tell me nothing at all. Is not it like the cellphone turn on and off you go?
If your laptop has a Bluetooth chip, it just works
Under the device manager stands under blutooth: bluetooth device (rfcomm protocol tdi)
Location on Qualcomm QCA9377 Bluetooth
And with that your question is answered
This only means that TVs and PCs usually do not have built-in Bluetooth module and therefore an additional module (this transmitter = transmitter) is necessary.
I can recommend you the Antimi Bluetooth headset / headset, I use the laptop and smartphone and in addition I can connect it to any TV, internet radio and hi-fi system with a bluetooth transmitter, which has a 3.5 jack connection with audio out.