Lenovo on X: "@kolyshkin Hi. Those are Infrared camera, Microphones and Conventional camera. See manual for T570 here: https://t.co/aENgBuwNZk (Pg.1). AL https://t.co/QYe8l6xqjg" / X
How can I plug my in-line stand-alone microphone, into my laptop that has no more 3.5 mm audio jacks? - Super User
Where is the built-in microphone on your PC - ideapad, ThinkPad - Lenovo Support AT