Wireless mice have become quite popular these days, but with them come a few annoyances — namely, input lag. Human Benchmark, while created to test your reaction time, will let you know whether your mouse's wireless connection is too slow.
Input lag can be very noticeable sometimes, but if you're not positive whether it's your mouse or your imagination, technology blog Tested recommends the Human Benchmark test to find out. The test is very simple: It shows you a red box for a random period of time, after which it flashes green. You are supposed to click the mouse as quickly as you can when it changes colour, and the test will record your reaction time. The more times you do it, the more accurate an average you'll get.
You'll need a wired mouse on hand to compare, but you probably already have an old one lying in your basement. Just plug in the wired mouse run the test a few times, and then do the same with your wireless mouse. If your reaction times are significantly different between the two, you may have an input lag problem. Keep in mind that there is a bit of a learning curve to this, and your second test might be naturally faster than your first — so be sure to do quite a few rounds to get as accurate an answer as possible (and maybe even go back and do a third test with the first mouse). If you do find a problem, hit the link to read Tested's tips on keeping lag under control — and be sure to come back here and share your own tips in the comments.