iPhone 7 users say device makes sound similar to hissing snake

Many iPhone 7 and iPhone 7 Plus users are complaining that the new devices create a sound similar to a snake hissing.

The sound can usually be heard when a processor-intensive application is working or when the devices are heavily used.

Apple iPhone users began posting videos on social media of their phones making the noise. It remains unclear how many phones may be affected. Apple has yet to issue a response.