@ismhbrand new, just-unboxed doing the same thing right now.
For the moment, Apple customers and technologists have been debating the exact cause of the curious hissing sound.
However, the issue doesnt appear for everyone.
source: www.techworm.net
Why Are The New iPhone 7s Producing Strange Hissing Sounds
Some iPhone 7s are Hissing When They're Under Load The newly launched iPhone 7 and iPhone 7 Plus went on sale Friday, September 16, which means Apple has
