The power requirements of a tablet, especially for those travelling outside the United States, or planning to buy one from a different country, or an important thing to consider to avoid damaging the tablet by putting too many volts into it.
The Orbo Jr uses the US standard of 110v, so it won’t work with the 220V or higher supplies found in other countries without a suitable 220v to 110v converter. Proper care need to be taken in this case to purchase an appropriate converted, to avoid causing damage to the tablet.