Rattling sound from iphone 5s?

Whenever i shake my iphone 5s, holding all the power, volume, and silence buttons down, and i shake the phone, i can hear a quiet rattle. It isn't the camera as i focused the camera and shook it and it made the same noise. I also went to best buy, and their display model had the same thing. Does your iphone 5s rattle when you shake it?

Ps: i can only hear tge rattle if i put my head really close to it.

Not that I'm aware of. You could take it to an Apple Store to have it looked at.

Most def take it to the apple store it should be covered under hardware. I used to work for them there great a helping people out