additional sensors on droid....what are they ?

[zero7404]

on the upper right corner of the phone there's the notification light, then there's a sensor next to it

on the upper left there are 2 more sensors....

i think the one on the right is a light sensor, what are the other 2 ? antennas maybe ?

 

[Backnblack]

One is a Proximity sensor....

 

[zero7404]

hmm....wonder wat the other one is, the accelerometer, antenna, etc....