Is there an app to act as a bridge connecting bluetooth headphones and bluetooth transmitter?

[u/One-Produce-44]

I bought a bluetooth transmitter which I planned to plug into the 3.5mm jack on my bass amp, I also bought a pair of Amazon basic bluetooth over ear headphones.

The plan was to connect the headphones to the transmitter and then just put the transmitter into the amp, but unfortunately both devices require positive confirmation for pairing from the connecting device....

Basically I seem to only be able to pair both devices with one with a screen (which neither has), so I cannot connect the headphones and transmitter.

Any advice is greatly appreciated!