Mycestro is a 3D mouse that enables more mobile computing. Whereas a traditional computer mouse requires a flat surface to operate, this design places it on the index finger and allows you to control your computer with hand gestures and mouse functions.
The small and lightweight piece of wearable tech leads to more intuitive interactions as it tracks hand motion in three-dimensional space. Mycestro incorporates Bluetooth 4.0 Low Energy Protocol and has a range of up to 30 feet. It is activated by your thumb so when you're not touching it, the cursor pauses until you use it again.
The touch-sensitive panel initiates cursor movement and you can control the cursor position by moving your hand in the direction you want it to go. To make selections, you simply release the touch panel and then tap it again on the left, middle or right button section.
Published in https://mashable.com/2013/02/19/3d-mouse-ring/