Bluetooth

Bluetooth 4.0 USB dongle that we tested and that is fully supported by WeIO (from version WeIO 1.1+) is GBU21. With this dongle it was tested that bluetooth works well in standard mode and as iBeacon.

http://www.amazon.com/IOGEAR-Bluetooth-Micro-Adapter-GBU521/dp/B007GFX0PY

Soundcard

USB soundcards are pretty well standardized hardware today. We tested two ordinary ones (supported from version WeIO 1.0+).

http://www.amazon.com/Virtual-5-1-surround-External-Sound-Card/dp/B000N35A0Y/ref=sr_1_8?s=electronics&ie=UTF8&qid=1425976659&sr=1-8&keywords=usb+soundcard

and

http://www.amazon.com/HDE-Channel-External-Sound-Adapter/dp/B0027EMHM6/ref=sr_1_4?s=electronics&ie=UTF8&qid=1425976659&sr=1-4&keywords=usb+soundcard

We strongly recommend the first one because it's housing is small and will not provoke problems inserting it into WeIO