Built-in streaming services are ones that are integrated within our streamers, and don't require the use of a third party streaming technology, such as Chromecast or AirPlay.
The CXN (V2) has the following built-in streaming services:
Spotify Connect
TIDAL (via TIDAL Connect and the StreamMagic app)
Qobuz (via the StreamMagic app)
Deezer (via the StreamMagic app)