I purchased a bluetooth receiver for my car last year since I already had a headphone size cord to plugin to my phone. The same thing could be used for your no

I purchased a bluetooth receiver for my car last year since I already had a headphone size cord to plugin to my phone. The same thing could be used for your now obsolete headphones. Although all I could find was the refurbished version. https://www.amazon.com/Etekcity-Bluetooth-NFC-Enabled-Certified-Refurbished/dp/B01CU00VQ0/ https://www.amazon.com/Etekcity-Bluetooth-NFC-Enabled-Certif... Now you just have to carry your phone plus a bluetooth receiver to plug into!