Negative Positive
Title: almost perfect, except: batteries needed
Review: the optical sensor is smooth. the software that comes along allows for programming the buttons for customized functions. left and right mouse buttons, clickable scroller, and two tiny buttons in between the left and right mouse buttons (default: back and forward on browser)after around 5 minutes of non-activity, the mouse automatically turns off. if you click on it, it turns back on. (didn't realize this at first, and i kept on pressing the reset button to sync it with the finder) that's fine once you get used to it.this mouse is almost perfect... except it runs on 2 AA batteries. the mouse cannot be manually turned off (instead, it waits for an interval of inactivity of about 5 minutes before auto-shutoff). as something of a nerd, i spend around 12+ hours on my computer on the weekdays. the batts only last about 2-3 weeks.if only it had a charger..
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