As a Twitch Affiliate and Partner, you are able to earn money through Bits and Subscribers and unlock more features like Channel Points.
Every content creator on Twitch can install Sound Alerts so that viewers can play sounds on the livestream. However, if you want to let your viewers use their Bits or Channel Points to play sounds, you need to be a Twitch Affiliate or Partner.
You can find the detailed requirements in your Twitch creator dashboard:
The requirements are:
• Reach 50 followers
• Stream for 8 hours
• Stream on 7 different days
• Average of 3 viewers
Within the same 30-day period!
If you reach these, you will be eligible to join the Twitch affiliate program.