Remote routes and dead zones
Outdoor teams, farms, marine crews and remote worksites can move through areas where standard mobile networks become weak, overloaded or unavailable.
CHATFIELD
LORA MESH · OFF-GRID COMMUNICATION
LoRa mesh communication for teams beyond cellular coverage.
CHATFIELD J25 · AVAILABLE NOWPair each ChatField J25 with a compatible smartphone to give equipped teammates local LoRa mesh communication when cellular service and Wi-Fi are unavailable. Use the phone for PTT voice, messages, team location and offline maps while J25 carries the off-grid radio link.
Local LoRa mesh networkNo cell service requiredPhone-paired PTT, messages & locationOpen-terrain ideal up to 10 km
FIELD LoRa mesh communicationPRODUCT J25 available for B2B evaluation
AVAILABLE FOR B2B EVALUATIONChatField J25LoRa Mesh Communication Device
USER INTERFACECompatible phone app
LOCAL NETWORKLoRa mesh
01 · THE FIELD PROBLEM
Teams still need voice, messages and location when the network disappears.
ChatField is built for the common gap between a normal mobile phone and a full satellite communication plan: local teams need to coordinate nearby work, but cellular service, Wi-Fi and public infrastructure cannot be trusted on the actual route.
More than one person needs the same picture
A buyer is not only purchasing a radio link. The team needs PTT voice, short messages, location awareness and a way to understand where equipped teammates are.
Not every project needs global satellite service
For many field operations, the first need is local team communication within the work area, route or patrol zone rather than worldwide emergency messaging.
Range must be tested against the real site
Open terrain, city buildings, hills, vegetation, antenna position and relay-node layout all change the result. ChatField explains those limits before sample evaluation.
02 · WHAT DOES CHATFIELD BUILD?
A LoRa mesh communication system for professional off-grid teams.
ChatField focuses on local team communication when cellular and Wi-Fi networks cannot be assumed. We combine phone-based operation with carried radio terminals and participating mesh nodes rather than imitating a conventional handheld walkie-talkie.
Local LoRa mesh communication
Multiple equipped users form a local communication network for PTT voice, text and voice messages, team location and operational data beyond dependable public coverage, cell towers or Wi-Fi.
Phone-paired operation
The compatible phone remains the primary interface while Bluetooth links it to the carried communication terminal.
ChatField J25
J25 is the current device that connects the phone workflow to the local LoRa mesh and is available for B2B evaluation.
03 · HOW DOES THE TECHNOLOGY WORK?
Phone interface. Paired J25. Local mesh communication.
J25 separates the visual interface from the radio terminal: the phone handles the familiar user experience while J25 carries the off-grid link between equipped teammates. The buyer should evaluate direct LoRa paths, local mesh relay behavior, the 5 km urban-obstructed field-test result and ideal open-terrain conditions separately.
Open the step-by-step system guide →Phone interface
The companion app provides PTT controls, text and voice messages, team positions and offline map interaction. The phone is the user interface; it is not replaced by a walkie-talkie-style handset.
Bluetooth pairing
Bluetooth Low Energy connects the phone workflow to the J25 carried by each equipped teammate, so the radio terminal can stay attached to a pack, belt or equipment setup.
Local LoRa link
J25 terminals exchange local team traffic using LoRa radio communication where cellular service and Wi-Fi are not dependable.
Mesh communication path
When the direct path is not enough, participating J25 nodes can contribute another possible path through the local mesh, subject to configuration, node position and field conditions.
Back to the teammate’s phone
The receiving J25 passes the message, PTT audio or location information back to the paired phone for display, playback or team awareness.
04 · RANGE AND RELAY PLANNING
Use the right distance language before a sample test.
Range is a procurement issue, not just a marketing number. A buyer should separate ideal open terrain, city obstruction and relay-node planning before deciding whether J25 fits the route.
In open terrain such as plains, open line-of-sight routes or areas with limited hills, J25 can reach an ideal communication distance of up to 10 km.
ChatField has also tested around 5 km in urban conditions with high-rise buildings and structural obstructions.
Where the configured network and team layout permit it, up to two participating J25 relay nodes may be evaluated on the real route.
Dense buildings, terrain, vegetation, interference, antenna position, carrying position and node layout can reduce usable distance.
05 · WHERE CHATFIELD FITS
Different from satellite messengers and open-source hobby mesh kits.
Buyers often compare off-grid communication products across different categories. ChatField should be evaluated as a phone-paired LoRa mesh communication device for local team coordination, not as a global satellite service or a DIY radio project.
Satellite communicators
Useful for global messaging and emergency workflows, usually with subscription-based satellite service. This is not the same problem as local team mesh communication inside a work area.
Category reference: global two-way messaging and SOSOpen-source LoRa mesh projects
Strong for technical communities and flexible experimentation, but procurement teams still need device supply, documents, support, configuration control and commercial accountability.
Category reference: no cell towers, no internet, peer-to-peer meshChatField J25
A productized phone-paired LoRa mesh communication terminal for teams that need PTT, messages, location and local relay planning beyond dependable cellular coverage.
Product route: sample, online kit, B2B quotation and documents06 · WHERE DOES IT WORK?
Real field scenarios, explained one by one.
Each solution page uses scene-specific field photography and explains how the phone and J25 are used together. Suitability still depends on terrain, team layout and local radio requirements.
AUTHENTIC FIELD PHOTOGRAPHY
Outdoor & Expedition
Keep moving teams connected across trails and changing terrain.
Explore the scenario →
AUTHENTIC FIELD PHOTOGRAPHY
Farms & Forestry
Coordinate crews across large properties outside dependable coverage.
Explore the scenario →
AUTHENTIC FIELD PHOTOGRAPHY
Remote Worksites
Support local voice, messages and position awareness around dispersed sites.
Explore the scenario →
AUTHENTIC FIELD PHOTOGRAPHY
Security Patrols
Give mobile patrol teams a shared local communication layer.
Explore the scenario →
AUTHENTIC FIELD PHOTOGRAPHY
Marine Operations
Coordinate nearby crews where cellular service becomes unreliable offshore.
Explore the scenario →
AUTHENTIC FIELD PHOTOGRAPHY
Emergency Response
Support local team coordination when normal network access is disrupted.
Explore the scenario →07 · WHICH PRODUCTS?
Two product programs. Two clearly different statuses.
J25 is the current product for evaluation and orders. J28 is shown separately because it remains in development.
AVAILABLE NOW
01 / J25
Phone-paired LoRa Mesh Communication Terminal
Use the phone for PTT, messages, location and maps while J25 provides the carried off-grid mesh communication link.
- Two-device online kit · US$598
- Compatible iOS and Android app
- PTT, text and voice messages
- Team location, offline maps and local SOS
- Ideal open-terrain range up to 10 km
- Urban-obstructed field test around 5 km
- Up to two participating relay nodes where the layout permits
IN DEVELOPMENT
02 / J28
Next-generation product program
J28 is a separate development direction. Final specifications, commercial timing and certification status are not yet claimed.
J28DEVELOPMENT PROGRAM
View development status →08 · COMPANY & PRODUCTION EVIDENCE
A real production base behind the product program.
Jingxi Box (Hunan) Intelligent Technology Co., Ltd. operates the group’s Hunan production base. These photographs document the wider intelligent-terminal production environment; model-specific J25 claims remain tied to the controlled product and FCC files.
Workstations, work-in-progress cartons and the operating layout are visible in one wide facility view.
WHAT A BUYER CAN VERIFY
- Visible production and work-in-progress areas
- A separately marked full-inspection testing area
- Organized finished-goods storage and packing flow
- Order-specific inspection evidence available for B2B review
09 · DOCUMENTS FOR BUYERS
Product PDF, FCC evidence and specifications should be easy to reach.
Procurement teams need more than a product claim. The homepage should lead them quickly to product data, FCC ID information, downloadable files and the next commercial contact route.
DOWNLOAD CENTER
J25 product PDF
Open the document hub for the current ChatField J25 product file and buyer-facing downloads.
Open downloads → COMPLIANCEFCC ID 2BVP9-J25
Review the public FCC identification and compliance-document pathway for the J25 model.
Review compliance → SPECIFICATIONSJ25 technical details
Check buyer-readable parameters, device workflow, range language and current product status.
View specifications → B2B EVALUATIONAsk for configuration support
Share target country, use case, quantity, terrain and branding requirements before sample or bulk order discussion.
Start inquiry →Evidence a buyer can review before contacting ChatField
- J25 model identity and FCC ID 2BVP9-J25
- FCC-aligned product PDF and model-specific test reports
- Phone-paired workflow, stated functions and range-evaluation language
- Two-device online kit price of US$598
Commercial details that depend on the destination and project
- Destination-market frequency and supplied configuration
- Current app build and compatible phone requirements
- Quantity, accessories, packaging and OEM/ODM scope
- Lead time, shipment, warranty and commercial terms
10 · HOW TO PLACE AN ORDER?
Commercial starting points a buyer can review now.
Standard supply, private-label OEM and product-development ODM projects follow different scopes. These published starting points help procurement teams decide what to ask for before requesting a controlled quotation.
The standard starting quantity for a volume order. Sample-evaluation quantity is discussed separately.
Applies after the final configuration, design, materials and commercial terms have been approved in writing.
Brand, packaging and documentation can be scoped. App or system development requires a separate feasibility review and schedule.
Destination configuration, documents, warranty, service, shipping and acceptance terms are confirmed for each project.
Define the requirement
Country, use case, team size, quantity and customization scope.
Evaluate a sample
Confirm the phone-paired workflow and test it in the intended terrain.
Approve the order
Align configuration, branding, documents, quality checkpoints and terms.
Produce and ship
Receive production updates, inspection evidence and packing/shipment files.
11 · BUYER QUESTIONS
Short answers for procurement teams before they contact us.
These FAQ items also help search engines and AI answer systems understand what ChatField J25 is: a phone-paired LoRa mesh communication device for off-grid local team coordination.
Does J25 need cellular service?
No. J25 is designed for local LoRa mesh communication between equipped teammates beyond dependable cellular coverage. The paired phone is used as the interface.
Is J25 a satellite communicator?
No. J25 is not presented as a satellite communicator or a replacement for public emergency services. It is a local off-grid communication device for equipped teams.
What can the team send?
The system supports PTT voice, text and voice messages, team location, offline map workflows and local SOS-style team alerts through the paired phone interface.
What range should buyers expect?
Open terrain such as plains, open line-of-sight routes or areas with limited hills can support an ideal communication distance of up to 10 km. Urban testing with high-rise buildings and structural obstructions has reached around 5 km. Buyers should still test the real route.
Can consumers buy it online?
Yes. The current online purchase path is the ChatField J25 two-device kit at US$598. B2B buyers should still contact us for quantity, documents, customization and market configuration.
What can procurement verify before requesting a quote?
Buyers can review the J25 product PDF, FCC ID 2BVP9-J25, model-specific FCC reports, buyer-readable specifications, the phone-paired workflow and the published two-device kit price. Destination-specific configuration, app compatibility, order quantity, shipment and commercial terms still require written confirmation.
12 · CONTACT CHATFIELD
Start with the market and the field problem.
Tell us the destination country, application, team size, expected quantity and customization needs. We will align the product, documents and next evaluation step.
USEFUL STARTING POINTS
- Target market and permitted frequency
- Primary use case and expected terrain
- Sample and estimated order quantity
- Branding, packaging and document needs