OMBRA v2 Soundproof Mask

OMBRA v2 Product Information Guide

Product Information Guide (pdf)

OMBRA v2 Product Information Guide (English)

OMBRA v2 Product Information Guide (Japanese / 日本語)

Articles and recommendations

OMBRA Sound Quality Problems: Adjust Mic Volume Settings: 
https://metadox.pro/blogs/news/how-to-improve-your-ombra-built-in-mic-sound-quality-adjust-volume-settings

How to videos

How to Assemble the OMBRA:

 How to Wear the OMBRA:

 How the OMBRA microphone works: