Hi guys, Welcome to the Advanced Video Search Engine, and you are watching 入眠用 デルタ波バイノーラルビート 8Hzから1Hzへ20分かけて脳の活動を落とします. That video is uploaded by 癒・促・脳の大前伍長 at 2016-09-05T07:49:57-07:00. We are promoting this video only for entertainment and educational purpose only. So, I hope you like & enjoy it. [NXk0ztqUz-E]