I have successfully used the Tesha USI stylus pen with an HP x360 convertible laptop. If my laptop came with the original pen, I certainly had no idea where it was now, so I decided to give Tesha a try. Aside from the AAAA battery issues (unless you want to disassemble the 9 volt battery), the pen works great. No questions. A little pricey at $42, but still reasonable for an active device (it's not just a piece of plastic with a capacitive tip). recommended
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