Cover Letter

FCC ID XFF-BRD21

OpenThread Border Router/OpenThread Mesh Extender

MMB Research Inc.

1. FCC ID
2. MMB Research Inc.
3. XFF-BRD21
4. Cover Letter

Document ID #6052403

This document is available from the following links. Linking directly to FCC.gov may result in an error.

• https://apps.fcc.gov/eas/GetApplicationAttachment.html?id=6052403
• https://fccid.io/XFF-BRD21/Letter/Cover-Letter-6052403
• https://fccid.io/XFF-BRD21/Letter/Cover-Letter-6052403.pdf

Sending you directly to the document available from FCC.gov...