I haven't been able to check if the pen works because I don't have a device to charge it. (Please charge it by attaching it to the side of an iPad.) I bought it under the mistaken impression that it was compatible with my device, but it wasn't, so I've had it stored away for a year. I've only turned it on once. Please refrain from purchasing if you are overly concerned about the condition. (Compatible models) iPad Air (4th/5th generation) / iPad Pro 11" (1st/2nd/3rd/4th generation) / iPad Pro 12.9" (3rd/4th/5th/6th generation) / iPad mini 6