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The Nod ring, available later this year for $149, is a sensor-studded ring that acts as a Bluetooth motion controller for a variety of devices.

Caption by / Photo by Nod Labs

Here's an early prototype of Nod. The final version will look smaller.

Caption by / Photo by Scott Stein/CNET

The Nod is waterproof up to 5ATM, and has surgical steel on the inside band.

Caption by / Photo by Scott Stein/CNET

There are 12 different sizes, so those who order one can get the right fit.

Caption by / Photo by Scott Stein/CNET

The top of the Nod has a touch panel for specific controls in situations like keynote presentations.

Caption by / Photo by Nod Labs

The Nod aims to work with PCs, Macs, Android, iOS, the Nest thermostat, Philips Hue lights, LG TVs, and even wearables like smartwatches and Google Glass with an open API and SDK for developing gesture-based apps.

Caption by / Photo by Nod Labs

A look at the internal tech, which includes a nine-axis accelerometer and twin Cortex M3 processors.

Caption by / Photo by Nod Labs

The Nod should last a day on a full charge.

Caption by / Photo by Nod Labs

Pointing will control an onscreen cursor like an air mouse, but other gestures and multifinger motions will be supported.

Caption by / Photo by Nod Labs

A demonstration with a working prototype.

Caption by / Photo by Scott Stein/CNET

Wearing Nod next to an actual metal ring.

Caption by / Photo by Scott Stein/CNET
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