IOS is a mobile operating system developed by Apple. Apple announced this system for the first time at Macworld conference on June 9, 2007. It was originally designed for iPhone, and later applied to iPod touch and iPad.
IOS, like apple's macOS, belongs to a commercial operating system similar to Unix. Originally, this system was called iPhone OS, because iPad, iPhone and iPod touch all use iPhone OS.
Audio * * * Enjoy
In iOS 13. 1, Apple added audio sharing function, allowing iPhone to connect two pairs of AirPods at the same time, so that two people can listen to a song at the same time.
Apple sometimes calls this feature "AirPods*** Enjoy Audio", but this feature is not limited to AirPods. In fact, any wireless headset equipped with H 1 or W 1 processor supports this function, including some Beats headphones.
It is found that iPhone 8/8 Plus/X of iOS 13. 1 and later iPhone models can support this function.