Sennheiser HDR120 Conversion to a wired or Bluetooth headphone
My sennheiser fm receiver HDR120 headphone became obsolete as Bluetooth headphones came to market and it was gathering dust. So I've decided to make it useful again and turning it to a fantastic headphone as it's always been.
In this video I'm going to share how to convert fm radio headphone receivers to a wired or Bluetooth headphone. Enjoy.