That piece of plastic is a piece of equipment Apple calls a "barometric vent".[0] [0] http://www.theverge.com/2016/9/16/12941040/iphone-7-teardown-plastic-behi

That piece of plastic is a piece of equipment Apple calls a "barometric vent".[0] [0] http://www.theverge.com/2016/9/16/12941040/iphone-7-teardown-plastic-behind-where-headphone-jack-used-to-be http://www.theverge.com/2016/9/16/12941040/iphone-7-teardown...