Issues to be resolved but works as expected.
On my device. ( iPhone 7) the audio is very quiet in terms of mic and speakers. My friends describe it as "fish bowl" and their volume is also very low. It will disconnect you instantly in some cases and then not allow you to reconnect until you restart the app. Otherwise this works almost identical to the full pc version and I am still pleased with it for the price.
Seanyo249 about
TeamSpeak 3, v3.1.15