Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cordless, but Lacking

I bought this mouse a year ago, but had to put it away because i didn't have enough batteries to replace my old ones(which drained in 3 days). I found it a couple of days ago and decided to install it. Although the position of the hand is very weird, you'll get used to it.Still, I don't fully enjoy the mouse because it is heavy, and uses up quite a lot of battery power.Buy it if you are willing to live with the faults.