Product 2/10 isn't even $5 it's $30. The life of the product is 12 hours, but with a 6-hour charge, the pen will only work for 30-45 minutes regardless of the power source. I originally bought this pen because it worked for the Lenovo M10, but when I'm taking notes and it only works for about 30 minutes, it starts to lag and is still blue. Then I charge and it suddenly turns RED. I charge another 6 hours and it's GREEN, then I started writing notes, after about 25 minutes the response is delayed again and after about 5 minutes it stops responding and it shows RED again. The power source does not matter, the pen is defective. I would ask for my money back or a replacement but this defect seems to be an issue for most people who have received this so I won't even be buying again. ACCURACY - When the pen worked, it worked decently and wasn't as accurate as $15 pens. To all Lenovo M10 buyers, don't buy this stylus because of the name, you can use any other universal stylus and they should work on your tablet. without problems with durability and accuracy.
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