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Title: poor design
Review: i thought i'd save alittle money and buy this cordless mouse. bad mistake. the ball hangs up on diagnal movement. within a week of light usage i was taking it apart to try to clean. that didnot help. i checked further and found what looks like a design flaw. the friction of the ball to the gears is not enough when moving toward the top left corner. it got frustrating having to move horizontal then vertical every time. i finally just through it away
