Utility Bluetooth® Adapter

Modern Tech for vintage sound.

This is the perfect gizmo to bring modern tech to vintage sound. Works great, nice size. Perfect addition to a pair of Koss headphones

It works easy and sound is still great

It works easy and sound is great. A good and pleasant alternative to the wired connection and gives me more remote control. The buttons are a bit stiff but do the job.

long-awaited product for KPH40 enthusiasts

For KPH40 enthusiasts, this Bluetooth adapter, freeing them from cable connections, is a long-awaited product. The sound quality is also comparable to that of a cabled connection; I couldn't hear any difference. The adapter's operation is simple, intuitive, and easy to use. The added microphone function allows me to switch between music and phone calls, which is incredibly convenient. I may never go back to a cabled connection. It's been a week since I started using it, and even with daily listening, the battery is still at 80%, so it's perfectly usable. However, hanging it around my neck causes it to move around and is uncomfortable, so I need some kind of fixation, and I need to choose clothing that will accommodate it. I'm still searching for the best way to wear it.