This mini mouse is perfect for the laptop user who is looking for a portable mouse.
No effort is involved to connect the mouse to the USB port. Simply connect and use! The retractable cord expands to about 2 feet. There are no problems expanding and contracting the cord.
With some optical mice there is a lag time but I have not had any problem with that.
As an FYI, I am a macbook user.
One caveat, those with large hands may find this mouse uncomfortable.