SHENZHEN · HARDWARE SOLUTIONS · ONE-STOP

From hardware idea to mass production, all handled by one team

Kezhonglong is a hardware solution company based in Shenzhen, China. We provide embedded software & hardware development and turnkey IoT smart-hardware solutions — covering requirement analysis, solution design, R&D, prototyping and mass production.

Full Cycle
Software + hardware under one roof
B2B
For brands & manufacturers
Shenzhen
Close to the supply chain

SERVICES

One-Stop Hardware Solution Services

Everything from idea to mass production — no more juggling multiple vendors just to launch one product.

🛠

Solution Assessment

We define features, target cost and manufacturing constraints, then propose a feasible technical route and architecture.

💻

Embedded Software & Hardware

Schematic & PCB design, firmware and embedded software development, custom core boards and mainboards.

📡

IoT Connectivity

Wi-Fi, Bluetooth, 4G/5G and LoRa solutions with cloud-platform integration, so your devices truly go online.

🔧

Prototyping & Testing

Rapid prototyping with functional and reliability testing — problems surface before you commit to volume.

🏭

Mass Production Support

Backed by Shenzhen's manufacturing supply chain, we coordinate contract manufacturing, lead times and quality.

🤝

Turnkey Delivery

Hardware, software, cloud and manufacturing advanced together by one team — faster time to market.

See the full capability list →

WHY US

Why teams choose Kezhonglong

Hardware projects fail when software, hardware, cloud and manufacturing are scattered across vendors. We run the whole chain — so you focus on product and market.

One accountable team

Software, hardware, cloud and manufacturing coordinated by a single partner.

Made in Shenzhen

Next to component and contract-manufacturing supply chains — fast, flexible iterations.

Involved from day one

Cost and manufacturing constraints discussed before a single line is designed.

Built to ship

Not just "it works" — it must be producible at scale, stably and on budget.

PROCESS

How we work — five stages

Requirements

Features, specs, budget & timeline

Assessment

Technical route & quotation

Development

Schematic, PCB, firmware & integration

Prototype

Sampling, testing, iteration

Production

Manufacturing handover & QA

FAQ

Frequently Asked Questions

What kind of clients do you serve?+
Brands, manufacturers and innovation teams that need smart-hardware products — from zero to launch or iterating an existing product. Start by telling us your requirements.
Can you handle only hardware, or also software and cloud?+
Either way. You can outsource a single layer or the full stack. For most products we recommend running software and hardware in parallel to avoid late-stage rework.
Can we validate a prototype before committing to volume?+
Yes. We typically start with a solution and prototype, verify function, reliability and cost, and only then move to mass production.
How are pricing and lead times determined?+
They depend on feature complexity, component selection and target volume. Send us your requirements and we will come back with a realistic assessment within one business day.

Have a hardware idea? Let's talk.

Send us your requirements — initial assessment within 1 business day.

Contact Kezhonglong