CHATFIELD
ChatField J25 is a phone-paired LoRa mesh communication device for professional teams that need local voice, messages and location coordination beyond dependable cellular and Wi-Fi coverage.
The smartphone remains the user interface. Each equipped teammate carries a J25, pairs it to the phone through Bluetooth Low Energy and uses the phone for PTT, messages, offline maps and team-location functions.
Participating J25 terminals provide the local LoRa communication layer. Where the configured network and field layout allow it, up to two participating J25 relay nodes may support an additional local path between equipped teammates. Open terrain such as plains, open line-of-sight routes or areas with limited hills can support an ideal J25 communication distance up to 10 km; urban-obstructed buyer trials should use the tested 5 km reference distance and record the actual terrain.
J25 · BUYER SUMMARY
Understand the product role before comparing specifications.
Current product path
J25 is the ChatField model used for sample evaluation, commercial quotation and B2B project discussion.
Operated from the phone
The phone is not replaced by a walkie-talkie-style handset. It remains the interface for the supported communication workflows.
Bluetooth + LoRa
Bluetooth LE links the phone to its paired J25. LoRa links participating J25 terminals inside the configured local team network.
FCC-tested radio data
Model J25 is identified by FCC ID 2BVP9-J25, with referenced FCC Part 15C reports for LoRa and Bluetooth LE.
10 km open-terrain ideal range · 5 km urban test
Use up to 10 km only for ideal open terrain such as plains, open line-of-sight routes or areas with limited hills. For urban-obstructed procurement trials, use the 5 km field-test result and confirm whether up to two relay nodes are useful on the real route.
DOWNLOADS · MODEL-SPECIFIC REVIEW
Put product and compliance evidence beside the buying decision.
Use the current J25 product introduction for internal review, then confirm the model, proposed radio configuration, destination market and document revision before approval.
J25 Product Introduction
English product document aligned to the confirmed J25 FCC radio values.
Download PDF ↗ REVIEW · EVIDENCEFCC & Compliance Center
Review radio evidence, model matching and the boundaries of market-specific documentation.
Open compliance center → REVIEW · DATASearchable J25 specifications
Read FCC-tested values as webpage text that buyers and search systems can index.
Review specifications →WHAT THE USER DOES
The team uses the phone; J25 carries the off-grid communication.
This section explains the daily-use workflow in buyer language, so a purchaser can understand what the team will actually carry, tap and receive in the field.
- 01Open the phone appThe user starts PTT, sends a short message, checks location or opens prepared offline map information.
- 02Carry the paired J25The phone connects to the user’s J25 by Bluetooth. J25 can stay on the body, pack or equipment instead of being used like a handheld walkie-talkie.
- 03Send without cell serviceJ25 sends the team communication through the local off-grid network instead of relying on mobile data or Wi-Fi.
- 04Use the available team pathThe message may go directly to another J25 or through another participating J25 when the layout allows it.
- 05Receive on the teammate’s phoneThe receiving teammate sees or hears the information through the paired phone interface.
WHAT BUYERS SHOULD TEST
Start with the jobs your team must complete.
A sample test should answer business questions: can the team talk, send short information, see teammate positions and keep working at the places where normal phone service fails?
Local group voice
Define who needs push-to-talk access, which groups are used and where acknowledgement is required.
Text and voice messages
Exchange concise operational information between participating equipped teammates.
Team location
Review how the current positions reported by participating team members appear in the phone interface.
Offline maps
Prepare the required map data before the team leaves dependable internet access.
Team SOS workflow
Define who receives, acknowledges and escalates a local team alert inside the organization’s own plan.
Participating-node path
Test whether another participating J25 supports a useful path at the actual terrain, spacing and node positions.
DOCUMENTS BUYERS CAN REVIEW
FCC evidence is available for model matching and internal review.
The following values come from the referenced J25 FCC Grant and FCC Part 15C reports. They help a buyer confirm the model and radio evidence, but final project details such as range result, battery, accessories and destination-market documents still need order confirmation.
- Equipment
- Smart All-Area Intercom
- Model
- J25
- FCC ID
- 2BVP9-J25
- Applicant
- Jingxi Box (Shenzhen) Intelligent Technology Co., Ltd.
- LoRa test scope
- 903–927.5 MHz · CSS · 16 channels
- LoRa report
- psi2603196-C01-R02 · FCC Part 15C · PASS
- Bluetooth LE test scope
- 2402–2480 MHz · GFSK · 40 channels
- Bluetooth LE report
- psi2603196-C01-R01 · FCC Part 15C · PASS
- FCC grant date
- June 4, 2026
BEFORE YOU APPROVE THE ORDER
Separate what is already documented from what must be confirmed for your project.
Already available for review
- J25 model identity and FCC ID 2BVP9-J25
- FCC-tested LoRa and Bluetooth Low Energy radio values
- Phone-paired local communication architecture
- Product PDF and compliance review route
Confirmed before purchase
- Destination-market radio configuration and required documents
- App build, device quantity, supplied accessories and packaging
- Operating route, team spacing, 5 km urban-obstructed range check and acceptance-test method
- Battery option, enclosure details and other commercial specifications
BUYER EVALUATION
A simple way to decide whether J25 fits your team before ordering in volume.
- Tell us where it will be used.Share the destination country, work scene, team size, expected quantity and whether the team works in city blocks, open terrain, coast, forest or remote sites.
- Choose what the team must do.Confirm whether buyers care most about PTT voice, text and voice messages, team location, offline maps, local alerts or relay-node coverage.
- Prepare the sample set.Confirm how many J25 units are needed for the test, which phones will be used, what documents are required and whether accessories or branding must be reviewed.
- Test the real route.Try the product at the places where communication normally fails, including buildings, hills, moving vehicles, team separation and possible relay-node positions.
- Decide what passed.Record whether the team can complete the required communication tasks clearly enough for the buyer’s own acceptance standard.
- Move to quotation.If the sample result is acceptable, confirm quantity, packaging, lead time, shipping, payment method and destination-specific documents.
COMMERCIAL STARTING POINTS
What a company buyer can plan before requesting a quotation.
These are published B2B starting points. The quotation remains the controlling document for the final configuration, scope, price, delivery, warranty and service terms.
Sample-evaluation quantity is discussed separately from the standard B2B minimum order quantity.
Measured after the final configuration, design, materials and commercial terms are approved in writing.
Private-label branding, packaging and buyer-facing document requirements can be included in the project scope.
Customer-specific app or system development requires feasibility review, development fees and a separate schedule.
QUOTATION + PAYMENT
Shopify checkout follows the approved configuration and amount.
Individual buyers can order one two-device J25 kit for US$598 through the dedicated Shopify purchase page. Company buyers should request a quotation for samples, volume orders or OEM/ODM requirements.
Personal order
- One online order contains two J25 devices
- US market reference price: US$598
- Final currency, shipping and applicable taxes or duties appear before payment
Company purchase
- Request volume pricing, samples or OEM/ODM support
- Confirm destination, configuration and document requirements
- Keep the approved quotation and payment confirmation together
Buyer notes to avoid misunderstanding
What J25 is presented for
- Local team communication beyond dependable cellular and Wi-Fi coverage
- Phone-paired PTT, messages, offline maps and team-location workflows
- Field evaluation using the buyer’s real route and team layout
What buyers should not assume
- J25 is not presented as a satellite communicator or a replacement for public emergency services
- Ideal open-terrain range up to 10 km and urban-obstructed field-test result around 5 km must still be verified against terrain, obstruction, interference and relay-node layout
- FCC radio evidence does not automatically approve every commercial configuration or destination market
J25 questions from procurement teams
What is the ChatField J25?
J25 is a phone-paired LoRa mesh communication device for local team voice, messages and location coordination beyond dependable cellular and Wi-Fi coverage. It is the current ChatField product path for sample evaluation and B2B quotation.
Does J25 replace the smartphone?
No. The smartphone remains the interface for PTT, text and voice messages, offline maps and team location. Bluetooth Low Energy connects the phone to the J25 carried by each equipped teammate.
How does J25 use mesh communication?
Participating J25 terminals provide the local LoRa communication layer. Communication may use a direct J25-to-J25 path or another participating J25 where the configured network and field placement allow it.
What FCC evidence is available for J25?
J25 is identified by FCC ID 2BVP9-J25. The referenced FCC Part 15C reports cover LoRa operation at 903–927.5 MHz and Bluetooth Low Energy operation at 2402–2480 MHz.
What operating range should a buyer expect?
Open terrain such as plains, open line-of-sight routes or areas with limited hills can support an ideal J25 communication distance up to 10 km. For urban-obstructed procurement trials, use around 5 km as the tested reference distance, then record terrain, obstructions, antenna position, interference, permitted configuration, node placement, up to two relay nodes and how the team moves before a bulk-order decision.
How will J25 online payment work?
Individual buyers can order one two-device J25 kit at the published US market price of US$598. Shopify checkout displays the final transaction currency, available payment methods, shipping and applicable taxes or duties before payment. Company buyers should request a quotation for samples, volume orders or OEM/ODM requirements.