73bc9136_Review_2013____Webmaster_Facts__Google_Glasses_Component
[Use] A speaker piece attached to the internal device frame which has been placed very accurately above your ears. [Abuse] Can be used as a spy gadget. Need I say more? Well, Ok. This component has no more loophole. [Google Glasses Component] 
Earphone
D i s p l a y S c r e e n
E a r p h o n e
M i c r o p h o n e
E x t e r n a l C a m e r a
I n t e r n a l M o t i o n s e n s o r
G l a s s / L e n s
B a t t e r y
T o u c h p a d
Google Glasses - Advantages and Disadvantages (Review 2013) | Webmaster Facts
Google Glasses Component