"I teach online using online whiteboards, and so a good quality pen was really important. Straight out of the box, I struggled to get it working and wrote to the LAZARITE helpdesk, who were prompt and quick in replying. Turns out all I had to do was keep both buttons pressed for 5 seconds to activate the pen. Since then, I have had to this a couple of times when the pen decided to stop working.
This pen works great with my Lenovo Ideapad Flex5. The only niggle is the buttons on the side of the pen are awkwardly located, so I sometimes end up erasing without intending to.
I have only had the pen for a short time, so not sure how well the battery lasts, but so far very happy with my purchase."