Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 더빛남의 목소리 좋아지는 법 제 1강. That video is uploaded by 더빛남 at 2020-02-01T01:52:16-08:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [OIt0rRAwuGE]