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Introducing EchoKit Box

· 3 min read

A bigger screen. A cleaner design. A more powerful EchoKit.

We’re excited to introduce EchoKit Box, the newest member of the EchoKit family — built for makers, educators, and anyone exploring voice AI Agent.

EchoKit Box keeps everything people love about EchoKit, but elevates the hardware, polish, and usability in every way.

Full-Front 2.4-inch OLED Display​

One of the most visible upgrades in EchoKit Box is its large full-front screen.

The entire front of the device is a high-contrast 2.4-inch OLED display, perfect for:

  • System information
  • Voice activity visualization
  • Playing videos stored on the TF card
  • Displaying graphics and custom UI
  • MCP-driven animations

Unlike the previous EchoKit generation, the visual feedback is clearer and more interactive, making this device suitable for both teaching and advanced AI projects.

Clearly Labeled Buttons (Including K0 and Reset)​

Many users struggled to find the K0 button and reset button on the previous EchoKit DIY model. EchoKit Box solves this by placing integrated, clearly labeled buttons at the top of the device.

Clear hardware labeling = less confusion and faster development.

TF Card Slot for Media and Local AI Workflows​

At the bottom of the device, you’ll find a TF card slot. You can store:

  • Music
  • Videos
  • Offline content
  • Custom datasets

And here’s where the fun begins:

You can ask the large language model to generate MCP actions that play music or video stored on the TF card — directly on the device.

That means you can say: “Play the music on my memory card.” And the device will play it through the speaker.

More Connectors for Additional Modules​

On the side of the EchoKit Box, you’ll find two colored connectors (blue and red). These are expansion ports for sensors and modules, such as:

  • Temperature sensors
  • Cameras
  • LED light modules
  • GPIO-based sensors
  • Custom peripherals

Using MCP actions, the large language model can control these modules:

  • “Turn on the camera and take a picture.”
  • “Read temperature from the blue port sensor.”
  • “Switch on the LEDs.”

EchoKit Box becomes your modular AI platform, not just a single device.

Transparent Back With Visible Electronics​

The back of EchoKit Box features a clear, transparent cover, allowing you to see:

  • The ESP32 CPU
  • PCB and circuitry
  • Speaker
  • Microphone
  • Components such as power regulators and drivers

Makers, students, and hardware enthusiasts love this design because it shows exactly how the AI device works internally.

This is especially useful for:

  • STEM education
  • AI education
  • AI Hardware demos
  • AI workshops
  • DIY repair and customization
  • Special gifts for developers

Why We Love the New EchoKit Box​

After months of iteration, we truly believe EchoKit Box is the most advanced EchoKit we’ve ever built:

  • Bigger 2.4-inch display
  • Better enclosure and build quality
  • Clear hardware labeling
  • TF card slot
  • More connectors for sensors and modules
  • Transparent back in geek style for education
  • Dual USB ports for firmware flashing
  • Great speaker/mic setup
  • Fully open-source and ESP32 powered
  • Works perfectly with local LLMs and MCP actions

It’s a hackable voice AI device that’s also polished enough for demos, classrooms, hackathons, and real projects.

Final Thoughts​

We’re really proud of the new EchoKit Box, and we think you’ll love building with it.

Whether you’re experimenting with conversational AI, creating an embedded chatbot, teaching students about LLMs, or building robotics projects with sensors, this device gives you everything you need.

Stay tuned — more updates, tutorials, and expansion modules are coming soon.

Try EchoKit’s fun AI Voices Free

· 2 min read

Have you ever wondered what your AI would sound like with a Southern drawl or a confident Texas accent?

Until now, these premium voices were paid add-ons — but now you can try them for free on the EchoKit web demo.

We’ve added diverse, natural accents including Southern, Asian, African-American, New York, and Texas English, bringing more authenticity and cultural depth to your conversations.

Each voice is expressive and warm, built to sound like a real person rather than a robotic assistant.

No installation or payment needed — just open the EchoKit web demo and start exploring: https://funvoice.echokit.dev/

How to Play 🎤​

  1. Open https://funvoice.echokit.dev/ in your browser.
  2. Choose the accent you want to try from Cowboy, Diana, Asian, Pinup, or Stateman.
  3. Allow the website to access your microphone when prompted.

  1. Click on Start Listening.
  2. Once you see “WebSocket connected successfully”, start talking to the character — it will respond in the selected voice!
  3. If you just want to listen, click Stop Listening to pause microphone input.

How Did We Make It 🎛️​

Want something truly personal?

EchoKit is an open-source voice AI agent that lets you customize every aspect of both the hardware and software stack. One of the most popular features is Voice Clone — you can even clone your own voice!

Ready to create a truly personal AI voice? Learn how to do it here: Voice Cloning Guide.

From Browser to Device​

Once you’ve experimented in the browser, you can take it even further.
EchoKit lets you play with these voices locally, on-device, even using your own voice.
Perfect for makers, educators, and AI hobbyists who want full control and real-time interaction.

🎧 Try the voices → https://funvoice.echokit.dev/
🛠️ Get your own EchoKit device → https://echokit.dev/

EchoKit — the open-source Voice AI Agent that sounds just like you.

Have any questions? Join our Discord community