Thanks for writing in and welcome to the community. To answer your first question, the SoundWear is not compatible with the SoundTouch Wave radios. The Bluetooth on that is for streaming music from your mobile device, for example. Hope that helps.
However, sorry to hear that the audio has been cutting out. You're correct in that your mobile device is streaming music wirelessly via Bluetooth to the SoundWear, but the music app on your mobile device itself may require a strong WiFi signal to play. To test this, try using your SoundWear inside.
Also, the Bluetooth range is up to 30 feet from the source device, but walls and other wireless devices nearby can cause interference which can also lead to audio dropouts.
Please let me know your findings when you get a moment.
Mohsin - Community Support
No problem and thank you for the update!
You may respond to this after your holidays, but can you please also include the message you are getting when you try playing the WMA file?
Thanks for the wishes, and to you as well!