Why won't my iphone6 speakers work?

Just got the new iPhone. I tried to face time, the other person doesn't hear me unless I have the headset in. I tried restarting, I cleaned it, factory reset. I've tried volumes and everything. No one can hear me when I put my phone on speaker.

My other half had the same issue. The FaceTime speaker is now at the top my the earpiece. So if that is covered by the plastic, screen protector or cover than that will be why.