Update on 1/22/2019 I just got email back from Huion customer service, and guess what they say? ” Regarding the flickering issue when using the battery-free stylus, kindly note that we have forwarded it to our tech team. And they said it may happen on some large size of drawing monitor.Please accept our sincerely apologyContinueContinue reading “Huion GT-192 pro pen display review”