STT options in mycroft

What are the options for STT in Mycroft. Are these online or offline?
How the wake word or hotword detection occurs ?

Hi,

The wake word / hot word is done offline using pocket sphinx (some users have replaced it with snowboy but it takes a bit of hacking)

The sentence after the wake word is parsed using the Mycroft cloud service, Google STT, IBM STT or WIT STT.