Simply sends audio from Mic to the speaker output at realtime mic,
plug it into your computer or whatever using a 3.5mm male to male headphone jack and you get a free mic.
You can use it like
Microphone
Karaoke
Megaphone
it Supports
Bluetooth Headset
Wired Headphone
Device built-in Mic
AUX Cable
Home Theater
Audio System
For uses like Singing or Announcement