here the response from Yuneec !!!
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Too your questions:
I’ve a NEW Yuneec Breeze 4k, but the Camera (servo) Motor is buzzing ? is that normal
When a puss the camera a little bit, the buzzing is over ?
Yes, that is normal, we will send you two videos just to show that the buzzing sound is normal, sorry for the low quality it is just for testing.
Is it because the buzzing , using more power ?
No, you should have good 10-12.min of fly time ( depens on the weather conditions )
Mit freundlichen Grüßen / Best Regards
Ihr / Your Yuneec Service Team