Didn't work for very long
344838
Columns of the leds have started to die, they will flicker on & off. sometimes they stop flickering and shibe normally, but not most of the time. This started after 14 months of use.  I don't  consider this particularly long when the lifespan is supposed to 50K+, which at 24 hours a day is over 5 years, and at my level of use should have lasted even longer.
3701822
Worked for a while, then quit. Not sure what happened, but I think it was a software issue if anything.
800679
I didn't last long before it quit working. It would jump all ove the page and wouldn't move objects around.
2420068
It worked great when it was working.  Suddenly stopped working after a month.
971786
It only worked for a month or so, afterward it wouldn't charge anymore, unless I really jimmie it.
629207
Ive had my cord for a couple of months now and use it quite frequently and today it stopped working. not sure why but it won't pick up information form my computer to project onto the screen. wasn't that expensive so I'm not upset but Im bummed I don't have one anymore.
3811113
I used this for less than a month and it got bad. :/ Worked well while it lasted but don't have your hopes up too long.
728821
I bought two of these and one was used once and then it stopped working. Very disappointed that it no longer works. The other one works fine...so far.
3958108
After about 2 weeks, began working only sporadically.  Unfortunately, I didn't use it for the first two weeks after purchase, so by the time it quit working, I was outside of the return window.  :(
3555904
I haven't had this very long not even a year and it quit working.  When it worked it was great, I didn't even use it everyday so it's not like i over used it. Would not buy again.
4239926
It worked fine for a few months, now it won't work. I have changed the batteries and tried it with another computer.
3937419
Ours began working sporadically after a few months. We tried replacing the battery but it didn't help.
4486106
When it worked it worked great BUT, it only worked for about 6 months.  Will not buy this brand again.
2640324
It worked fine for about 6 months, after that it just stopped working and I don't know how to fix it.
485289
Mine stopped working this week, meaning it worked for five months only. Now needing to buy another one and spend more.
1709702
Cheap piece of junk that died after very little use
102290
very affordable, but did not last too long
stopped working after just a few months