“This pen hard shuts off every 15-minutes as a 'feature.' This means, every time you use it, you'll need to search for the black-on-black button, which is impossible to see anyway, and click it 5-times in succession at just-the-right tempo. Sometimes it takes 3-5 attempts to UNLOCK the device, then you get to start your draw. This product is beyond ridiculous. The battery power is good, but not great, when you do a get a draw.”