John said:
Logitech describes it as a micro-gear. The important function is
being able to release the clicking mechanism so that the wheel spins
freely. The wheel is probably heavier than a typical mouse wheel so
that it continues to spin for a long time. Any other makers of
flickable mouse wheels yet? Very cool IMO.
Yes, I just started using one that I purchased from Tiger Direct for my
laptop. It is the Logitech VX Nano Cordless Laser Mouse For Notebook
(L23-6313) model that comes with a miniature USB transmitter. The
transmitter is stored in the bottom of the mouse when not needed and when
placed there will power down the mouse. There is little power button on the
bottom of the mouse if you want to leave the transmitter plugged into the PC
and still shut down the mouse.
I was totally unaware of the free-wheeling option of the mouse when I
purchased it. When it came mine had the usual clicking mouse wheel that I
was used to. After using it only a couple of hours it started free-wheeling
with no clicking. I figured I had broken it until I pushed down on the
wheel hard enough to once again activate the ratchet mechanism. I just need
to remember to not use such a heavy finger on the wheel or else it switches
modes on me. Free-wheeling through multiple lists or links is much smoother
and faster.