Definition: Given an Amazon customer review, write a title for the review. The preferred titles are under fifteen words.
Input: I bought this as a replacement for a corded mouse.  I paid 5X the corded price to get rid of the cord, which was always getting in the way.  I was also interested in the long battery life.    First, the mouse is very picky about what surface it is on.  I finally found a mouse pad that it would track but the mouse to screen scaling is almost 1:1.  As a result, moving the cursor across the screen takes about 5 sweeps of the wrist. Now my wrist hurts. Eventually, I was able to fix the problem by cleaning the LED with a swab and alcohol. I assume that the special low power LED is sensitive to dirt or dust.     I don't recommend this mouse to anyone unless you try it in the store.  Lotsa luck with that, since you have to destroy the packaging to remove it.    Save your money and buy a cheaper and more robust product.

Limited Tracking, Hurts to Use