Closer Look: Genius Ring Mouse 2
The first thing that you notice is how small the Ring Mouse 2 really is. I was expecting a big boxy and clunky unit, and this could not be further from the truth. In the plastic package you have to look twice to see that it is the silver (or titanium) spot in the middle of the card. For scale the plastic box, below, is approximately 3.5 x 5 inches (8.9 cm x 12.7 cm), and the Ring Mouse itself, 1 x 1.5 inches (2.5 cm x 3.8 cm). It feels very comfortable on the finger, and is not distracting at all.
As for the design, it is a collection of graceful curves and gentle edges, that easily fits on your finger. It is almost like having another oversized ring on. After a short while it seems to be a part of your hand.
Included in the package is a USB RF receiver that provides wireless connectivity with a range of approximately 33 feet or 10 m. I was impressed with the ability to control my cursor, from quite far, in a cluttered environment.
When not in use, or when travelling the USB receiver slips right into a convenient hole in the front of the ring. This ensures that a) if you have the Ring Mouse 2, you have your receiver, and b) that the receiver does not fallout of the bag when you toss it in your briefcase, pocket or backpack.
As you can see below the ring mouse uses a standard micro-USB interface to plug in to your laptop, or cell phone charger to recharge. Each charge lasts about hours.