Picture this: you walk into someone’s house and notice what looks like a polished piece of wood mounted on the wall. You’d probably think it’s some minimalist decor choice, maybe a floating shelf that forgot its purpose. But then your host casually swipes their finger across it, and suddenly soft dots of light appear beneath the wood grain, displaying the current temperature and adjusting the room’s lighting. Welcome to the world of Mui Board Gen 2, where smart home technology disguises itself as furniture.
Designed by Mui Lab, a Japanese company based in Kyoto, the Mui Board Gen 2 is what happens when someone asks, “What if we made tech that actually knows when to shut up?” Lately, it seems that every surface wants to be a glowing rectangle screaming for attention but this device takes the opposite approach. It’s a smart home controller made from actual wood (not wood-textured plastic, but real maple or cherry) that only shows information when you need it. The rest of the time, it’s just there, blending into your home like a tasteful piece of trim.
Designer: Mui Lab
The concept behind Mui Board is rooted in something called “Calm Technology,” a philosophy that says the best tech is the kind that disappears. The device is even certified by the Calm Tech Institute, which is either very official or the most zen certification body you’ve ever heard of. The Japanese term “mui” itself means being in harmony with nature, and this controller takes that idea seriously by using natural materials and a low-key interface that won’t turn your living room into Mission Control.
So what does this wooden wonder actually do? It’s a full-fledged smart home hub that supports Matter, the universal smart home standard backed by tech giants like Google, Apple, Amazon, and Samsung. This means it can talk to hundreds of different smart devices, from your Philips Hue lights and Sonos speakers to your Ecobee thermostat and SwitchBot gadgets. You can control lighting, adjust your AC, manage blinds, and even stream music, all through a touch interface that uses simple dots and icons instead of a full color screen.
But here’s where things get really interesting. At CES 2026, Mui Lab unveiled something called the mui Calm Sleep Platform, which might be the most intriguing feature yet. The sleep-enabled version of the Mui Board Gen 2 now incorporates millimeter-wave radar technology to track your sleep without any wearables, apps, or cameras pointed at your bed. This is what Mui Lab calls “Spatial AI,” where the device uses natural human gestures as the interface, allowing your environment to sense and adjust itself without you lifting a finger.
The mmWave radar can monitor vital signs, measure sleep patterns, and even set alarms based on your sleep states, all while you’re completely undisturbed. Unlike fitness trackers that you have to remember to charge and wear, or smart displays with cameras that feel like Big Brother moved into your bedroom, the Mui Board just sits there on your wall, quietly doing its thing. All the data processing happens locally too, which means your sleep data isn’t getting shipped off to some cloud server.
Beyond sleep tracking, the board still functions as a family communication hub. You can handwrite messages directly on the wood surface and send them to family members through the mobile app. There’s something oddly charming about leaving a digital note on a piece of wood for your partner or kids. You can also check weather updates, set various types of timers, and sync it with Google Calendar for family event reminders.
The second-generation model embraces what Mui Lab calls the “Piece of Wood” design concept. They’ve eliminated all visible holes from the front, sides, top, and bottom, moving the power button and speaker to the back. It’s an obsessive attention to detail that makes the device look even more like just a piece of wood. They’ve also kept the display intentionally low-resolution because they believe showing less information at once actually makes for a better user experience.
Now let’s talk about the price tag. At $999 (sometimes on sale for $799-849), the Mui Board Gen 2 is not what you’d call an impulse purchase. This is a device for people who are serious about minimalist design and willing to pay premium prices for it. Is the Mui Board Gen 2 practical? Your smartphone can do most of what this device does, probably faster. Is it cool? Absolutely. There’s something genuinely appealing about a smart home interface that doesn’t look like it belongs in a sci-fi movie. It’s tech for people who’ve had enough of screens but still want their home to be smart. In a world where technology keeps getting louder and more demanding of our attention, the Mui Board Gen 2 is refreshingly quiet.
