A Sony press release states: "The INZONE E9 hosts Sony’s first fully enclosed structure, and combined with the noise isolation ear tips, they achieve superior passive noise isolation for more focused sound. These in-ear monitors are designed to reduce sounds from a pro tournament crowd or get rid of simple background distractions in everyday play."

The Sony Inzone H9 II sounds incredible and feels great. It's just short of perfect in one important way. You don’t need to do much more to sell me on a pro-level gaming headset than Sony did with its latest Inzone H9 II.

Sony's released a new line of PC gaming accessories, including a new flagship headset and its first gaming keyboard, mouse and in-ear monitor headphones.