Call of Duty Season 4 Reloaded is live in Black Ops 7, bringing the brand-new Kowakujo map to Zombies. Like previous Zombies maps, Kowakujo includes an Easter egg you can activate to play a new tune composed by Kevin Sherwood. Here, we guide you in finding the hidden headphones needed to unlock the secret song on Kowakujo in Black Ops 7's Zombies. How to unlock the Easter egg song for Kowakujo To activate Kowakujo's secret song, you first need to find three hidden headphones.
Источник
GameSpot