I've never seen a keyboard that heal such a horny lighting and so a direct and not mechanical, stop how this keyboard, but beware that's it !!! Processed incredibly cheap, mass gap like a like a car from the 50's, incredibly bad and wrong screws, anti ghosting no function and after less than two weeks keys 2 keys that are broken beyond repair! Incredible waste what you there for Ca. 50 gets put in front of the extent, I can only say, if you had since put money in quality and workmanship, the thing would have the makings of a brand Primus, but so, even every cheap keyboard for under 10 is better than that thing! Stay away from that, I am much accustomed to, but this is extreme CHEAP RUBBISH !!!