The circumaural design and leatherette sealant of the headset's ear cups, block out all unwanted, ambient noise and allows players to only hear the awesome, intense audio of their games and music.
Phan, along with my friend and commenter Marq Hwang, suggested ditching expensive and bulky noise-cancelling headphones in favor of smaller earphones that block noise by sealing off the ear canal.
Thuan Phan, who spends about half the year as a sales engineer, points out that the advantage in space and cost goes to small earphones that block noise by sealing off the ear canal.