The pen works, but has two major errors. - After about 1, at least 3 years, the display falls out completely. It will gradually darken until the writing after some time brightness in dark room is no longer recognizable even at 100%. There are a large number of affected customers [...] Supposedly lets you extend the lifetime when the pen regularly (daily) invites and holds possible under full battery charge. My pen, bought in late 2012, is therefore of no value because I can not carry out the settings for the new wireless password. - WiFi: support is "pre-shared key" authentication, ie meant to be used for home networks. Thus, it is not possible a wireless connection, and thus the synchronization eg at universities or most other establishment with personalized wireless access (usually WPA2-Enterprise). Consists precisely in the sense of a WiFi-Pens that can be distributed Written immediately and not have to be transferred only in a separate step later at home.
