3 to 7 working days. Huisen is a music karaoke app developed by Beijing Chenzhong Technology Co., Ltd. To apply for musician certification, you need basic information, that is, personal information. You need to fill in the musician's name, photo, identity, region, mobile phone number, gender, birthday, Information such as profile, region, gender, date, and photo must be consistent with the information for real-name authentication. Generally, the review will be completed in 3 to 7 working days. If the review fails, you will be prompted with the reason. If the personal information review fails more than 5 times, you will not be able to settle in.