Why are there microphones on the earpieces of AMBEO Smart Headset?

AMBEO SMART HEADSET includes one omnidirectional microphone on the outside of each earpiece.

These microphones are designed for three purposes:

• 3D Audio recording
• transparent hearing
• automatic noise cancellation.

To hear these purposes for yourself, check out these recordings made with AMBEO SMART HEADSET: http://www.apogeedigital.com/shop/ambeo-smart-headset#recordings