1. Input Voltage
- US standard: 120 v 60Hz
- Indian standard: 240v 50Hz
Try to have a transformer which has a wattage of 40 to 50% more than the required wattage. For instance, if your equipment requires 110v x 0.4A, then don't plug it using a 50W transformer, instead use 100W transformer.
2. Pin format
The Pin format between US and India are incompatible. However the alternate is to use the Pin converter. Try using Flat to Round model.
3. DVD Region
DVDs created/bought in US will be encoded to Region 1. Similarly the players bought in US will only support Region 1. If you have to use it in India, check if the player supports multi-region. Or else if there is anyway to change the default region.
4. Wireless standard
In India, the wireless standard that we have are IEEE 802.11b and still we do have standard IEEE 802.11g standard widely available. So see that your device supports both.