This document is a formal confidentiality request submitted to Eurofins Electrical and Electronic Testing NA, Inc. on May 7th, 2025, by Shenzhen Yihao Technology Co., Ltd. It pertains to the Proxmark3 device and its associated FCC ID: 2BOM4-YIHAOREADER#. The request seeks to withhold certain documents from public review under sections 0.457 and 0.459 of CFR 47. These documents, including the Schematic Diagram, Block Diagram, BOM, PCB Layout, and Operation Description, contain detailed system and equipment descriptions considered proprietary information.
The disclosure of these documents could be harmful to the company, potentially giving competitors an unfair advantage in the market. The request emphasizes the need for permanent confidentiality to protect the company's competitive position. The letter is signed by Lingxing Zeng, Manager, and invites further contact for any additional information.