The device has the product code CLO-001, and does not appear to be a Switch 2 console or a traditional controller for it. Nintendo’s documents show roughly what shape this mystery box will be, though. It’s a rounded rectangle that needs to be plugged in over USB-C. There’s no battery inside.

The FCC certifies a mysterious Nintendo device that might be some kind of an accessory for the Switch 2, which is rumored to be announced soon.

The 24GHz mmWave sensor does give us an idea of what Nintendo might be working on. mmWave sensors use short-wavelength electromagnetic waves. According to a paper by Texas Instruments, a short-wavelength system is highly accurate and "will have the ability to detect movements that are as small as a fraction of a millimeter."

As the world awaits the reveal of the Switch 2, Nintendo has filed plans for a new mysterious device which includes a motion sensor.

Quick Summary A mysterious Nintendo device has appeared on the website of the FCC. This means it has official approval for release in the US, with its communications tech having met the right standards.

Nintendo has submitted a mysterious new wireless device to the Federal Communications Commission (FCC) this weekend, and it isn’t the Switch 2 console we’re expecting to be revealed before next April.

Nintendo has submitted a mystery new "wireless device" to the US Federal Communications Commission (FCC) for approval that does not appear to be the hotly-expected Switch 2. Specific details of the device remain under-wraps,