Similarly, Nod is a new Bluetooth ring thats capable of imbuing just about any Bluetooth device you already own with motion controls. Nod is not the first Bluetooth ring to offer motion controls, but it is the first one launching directly to market without a crowd-funding campaign. What it does is fairly simple, at least in concept: Wear the ring, and use the motions of your hand and fingers to control Bluetooth-enabled devices.
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