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MS bought the company that designed that system. I use the "Adrawpen" for MS Surface which has massive AAA battery life and is almost identical to Kobo pen, except at £18 it comes with spare tips. Operation & performance totally identical to the Kobo Pen (I have an Elipsa too).
Actual MS pens are overpriced and some have also BT for One Note activation, so avoid them.
Rechargeable makes no sense on long life things like such a stylus type, smoke alarms, DMMs, keyfobs, wireless door bells and electret microphones. I was designing battery powered electronics for 20 years.
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