How to Review J25 FCC Evidence Before a B2B Evaluation

Published

Prepared by ChatField Editorial Team. Published July 27, 2026.

A serious J25 purchasing review should match the product, FCC ID, applicant, radio reports and grant dates before a buyer treats any document as relevant. This guide explains how to organize that evidence without turning a limited test result into a universal product claim.

Start with the exact product identity

The first procurement check is not the marketing name. It is the identity chain on the evidence. The model is J25. The FCC ID is 2BVP9-J25. The applicant and grantee shown in the project evidence is Jingxi Box (Shenzhen) Intelligent Technology Co., Ltd. ChatField is the product brand used for the J25 business offer; it should not be substituted for the legal applicant shown on the FCC record.

The FCC explains that certified radio-frequency equipment is identified by its FCC ID, which combines a grantee code and a product code. For a buyer, that means a report, label, grant and ordered model must all point to the same identity. A similar product name or enclosure is not enough.

Understand what each J25 document answers

The J25 evidence set separates different technical questions. The LoRa report psi2603196-C01-R02 covers the 903 to 927.5 MHz LoRa radio layer using CSS across 16 channels. The Bluetooth LE report psi2603196-C01-R01 covers 2402 to 2480 MHz using GFSK across 40 channels. The WPT report psi2603196-C01-R03 addresses wireless power-transfer testing, and the EMF report psi2603196-C01-R04 addresses the exposure evaluation described in that report.

The authorization set also includes a DCD grant dated June 3, 2026, and a DTS grant dated June 4, 2026. A grant is not interchangeable with a test report. The grant records the authorization outcome; the supporting reports show the configurations, procedures, values and scope used for the evaluation.

Read PASS as a scoped result

The project reports state PASS for the tests they describe. That is useful evidence, but procurement language should preserve the boundary. PASS does not mean every country, battery, accessory, firmware version, installation or use case is approved. It does not eliminate the need to confirm the exact commercial configuration that will be supplied.

This distinction is especially important for international buyers. FCC evidence supports a U.S. review against the identified device and rule scope. It should not be presented as worldwide market approval. A distributor entering another market should identify the local radio, labeling, battery, transport and product-safety requirements separately.

Keep J25 and J28 evidence separate

J25 is the current phone-paired LoRa mesh communication terminal. The smartphone is the main interface for push-to-talk voice, messages, offline maps and team location; J25 supplies the local LoRa mesh radio path. It should not be described as a traditional handheld walkie-talkie.

J28 is a separate development program. J25's FCC ID, grants and test reports must not be reused as proof for J28. The same rule applies to any future model, private-label variation or changed hardware configuration: the buyer must review the evidence against the product actually offered.

Build a procurement evidence matrix

  • Record the ordered model and the FCC ID shown on the device label.
  • Match the applicant or grantee name across grants and reports.
  • List each report number and the radio or exposure question it answers.
  • Capture the grant dates and the rule part stated in the evidence.
  • Confirm that supplied accessories and battery documents match the order.
  • Separate documented facts from items that still require supplier confirmation.
  • Archive the reviewed files with the quotation and approved configuration.

Use product evidence before a field trial

Document review and field testing answer different questions. FCC evidence helps a buyer confirm product identity and the tested radio scope. A field trial tests whether the approved commercial sample supports the team's route, obstructions, user workflow and operating procedure. Neither step should be used to replace the other.

Next step for B2B buyers

Start with the J25 product definition, review the documented specifications, download the current files from the J25 compliance center, and request a configuration-specific evidence review before approving a sample or bulk order.

Sources and evidence reviewed

This guide summarizes the identified J25 evidence for procurement review. It is not legal advice and does not convert FCC evidence into approval for other products, configurations or markets.

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