This phrase is for social users who want to watch with friends remotely. "邀请好友观赛功能" suggests they are looking for a co-viewing or watch-party feature.
The content describes the "共同观赛" (co-watch) feature, where users can create a private room and invite up to 10 friends. It includes synchronized video playback and a group chat. The page explains how to send invites via link or QR code. It also notes that all participants need an active subscription or free trial to join.