Video playback, account privileges, gift privileges, event privileges.

1. Video playback: Quarterly members can watch all videos on Douyin without restrictions on duration and frequency, and can also enjoy high-definition and ad-free viewing experience.

2. Account privileges: Quarterly members can get exclusive avatar frames and personalized signatures, personalized level upgrades, and special member logos.

3. Gift privileges: Quarterly members can get more gift-giving privileges, including gift-giving acceleration, gift-giving special effects, popular gift-giving, etc.

4. Activity privileges: Quarterly members can participate in various activities and draws within Douyin and enjoy more activity privileges and benefits.