The hole beside your phone's camera, here is what it means

Ever Noticed The Small Hole Next To Your Phone Camera? It’s There For A Really Cool Reason
By Admin
There is always something new that you can learn about your phone. The latest, is the hole somewhere around the camera lens and the flash. Ever noticed its existence? Ever wondered what it's there for? Thought it served some inexplicable purpose?
Source: shoutpedia
Is it not a pet peeve to find out what certain things do and why they're there? In this case, it's not a button and neither is it part of the camera. It's a microphone, just not your ordinary microphone. What does it do then? There is an explanation for almost everything, if only you have the will to find out.
Source: zive
The hole next to the camera on your phone is a noise cancelling microphone!
Source: testmeaz
Here's what's funny, companies have clearly pointed out the feature. It's been called the rear microphone. It's function however is not something that many may know about.
Source: diply
 Yes, you may now pass on the knowledge. Go! Go! Go!