After spotty performance from the included wireless headphones, I took Steve’s suggestion and picked up a pair of Sunray CTX Pro Gold head phones. I connected them to the WM08 module using the ML Nox adapter pig tail. The difference in audio performance between the Pro Golds and wireless headphones is night and day. I had a lot of connection issues with the included wireless headphones, when they did connect, audio through them wasn’t much of an improvement over just using the speaker.