USB powered
The pen is powered by a standard USB connector. Such devices are as versatile as possible in connectivity: they can be powered via a PC, a portable device like a laptop or tablet, an external power bank, a USB wall charger or car charger.
Auto Power Off
Automatic power off of the pen for being idle for a while. Usually, auto-off triggers after a few minutes.
This feature is found mainly in models with a "hot" type of operation (see "Product Type"). It saves energy and reduces the risk of getting burned by accidentally touching the pen that is left on. However, there are also "cold" models with auto-off.
Country of brand origin
The country of origin indicated in the specifications of the device. Note that this is far from necessarily the place of actual manufacturing: frequently the “homeland” of the brand or the location of the manufacturer’s HQ is indicated as the country of origin of products. Additionally, giving the importance to this parameter, it should be taken into account that many “national” stereotypes are unfounded: in the modern world, the quality of a product depends not so much on its country of origin, but on the price category and the overall reputation of the manufacturer. So, paying attention to the country of origin makes sense only if you fundamentally want (or do not want) to support a brand from a certain country.