Replacing the Vive Deluxe Audio Strap cushion

You should remove the Vive Deluxe Audio Strap cushion to clean it.

Review: Vive Deluxe Audio Strap

HTC VIVE デラックス オーディオストラップ - PCゲーム

HTC unveils deluxe Vive strap with in-built audio - Polygon

HTC Vive Deluxe Audio Strap : : Video Games

HTC Vive Deluxe Audio Strap Pictures And Impressions - GameSpot

人気販売店 VIVE VR デラックスオーディオストラップ - PC周辺機器

HTC VIVE デラックス オーディオストラップ - PCゲーム

Using the mounting kit

Adapter Compatible with Meta Quest 3 Accessories, Perfect for Connect HTC Vive Deluxe Audio Strap Adapters and Quest 3 Replacement Strap : Video Games

Vive Pro DAS Adapter - Canada

DON'T FEAR FrankenQuest: what is it and do you need it for Oculus Quest? (Beginners' FAQ)