A battery-powered device with a screen, built from your idea.

What you can send

• An idea or a sketch
• A requirements document listing what the device must do
• Code that already runs on a development board
• A working prototype that needs to become repeatable

Devices we have built

AI voice companion

Pocket device: battery, display, microphone, speaker, side wheel and button, Wi-Fi.

Desk AI companion

Li-ion battery with charging and protection, LVGL screen, Bluetooth, voice alerts.

PottedBaby smart planter

Rechargeable battery, OLED expression display, motion sensor, microphone and speaker.

What we built on the desk AI companion

What it costs

You pay a one-time development fee, then a price per unit that depends on the quantity. Our engineers' reference range for development is about $500 to $3,000 for a simple small device and about $3,000 to $10,000 for a multi-board device. Totals exclude certification (quoted separately) and shipping. Reference figures, not fixed prices; you get a written price before any work starts. Costs →

Engineering notes from our battery and screen builds

• Before choosing a battery, check what your prototype really draws
• Will your battery-powered prototype stay on when nobody is using it?
• Your battery prototype sleeps. Will it wake up ready to work?
• Making a handheld prototype wake when you pick it up
• Give a prototype a screen that explains what it is doing
• Your prototype screen works. Will people be able to read it in the enclosure?
• A beep, a light or a vibration: will people notice your prototype?
• A countdown reminder needs a clear stop button

Who does the work

Zisheng Li, engineering lead

Embedded systems. 20+ hardware products built. Named inventor on 8 granted patents.

Where it is built

Electronics benches in Shenzhen where our engineers build and debug, and the tool rooms, board and assembly lines we order from. You see each process, not the factory's name. Factories →

How it starts

1. Send what you have through the project form, by email or on WhatsApp.
2. If you ask, we send the NDA first. We sign it before we open any file.
3. We reply within 12 hours, list what is missing and suggest the next build step.
4. You get a written scope with price and date before any work starts. Major scope changes are re-quoted before work continues.

Questions