How do I know if I qualified for the bonus as the 1st 100 people to back this product?
By zhouya
Source: https://global.rokid.com/blogs/backer-number/how-do-i-know-if-i-qualified-for-the-bonus-as-the-1st-100-people-to-back-this-product
You can check out your backer number on Kickstarter order page or check out the email that Kickstarter sent to you.