You are right, there is such a way and it is comparatively affordable. You will need to buy Bluetooth Aux adapter. There are multiple variants of these adapters sold on AliExpress for just 3-5 dollars. I’ve chosen this model for my personal use and quite content with it. If you have never bought anything from AliExpress before – read our step-by-step instruction (How to buy from Aliexpress (step-by-step instructions)). Using this adapter will enable you to turn any of your headphones into wireless ones – just connect the adapter to your phone via Bluetooth and plug the headphones into the audio jack. Music will be transmitted in stereo format owing to the device supporting of A2DP profile.
What is included
On the one hand, the package contents is quite scanty, but on the other, everything necessary is included – car adapter, micro-usb, charging cable, instruction in English and, of course, the device itself.

Operating the device
It’s extremely simple to operate – there is a single button on the adapter, it turns the device on as well as starts searching for Bluetooth-devices, located nearby. To connect to a car stereo, you will need to use an adapter:

Moreover, thanks to the device containing a microphone, you can use it for conversation. In this case, the only button should be used as well – it accepts and drops a call.
There is only one disadvantage worth mentioning – the adapter requires charging from time to time. The manufacturer promises up to 8 hours of replaying. Audiophiles may treat the sound quality as a disadvantage, but I’ve noticed no difference if compared to aux-cable.
If you have any more questions – don’t hesitate to ask, our experts will be glad to help you!