Any international adaptor will do.
Its really cheap. Less than RM 10. Buy in hardware shop or mr Diy.
If u have a voltage regulator at home high chance it can support international plug too.

First obvious thing to check is dead pixel.
Screen lift, test speaker.
http://forum.xda-developers.com/showthread.php?t=1801464

ok ok, i'll be more specific.

1. go to gallery, scroll through some pics. look at the screen at close range, observe got any dots on the screen that is static and forever stuck at the same color or not.

2. see the tablet from the sides. see the screen got come out abit or not. its suppose to be same level at the bazel.
if unsure, just compare left and right side see same or not. usually the left side is lifted.

3. load youtube or just play any sound at maximum volume. if got weird noise or cracking sound, means speaker spoil. compare the same sound at low and max volume.

there, specific enough?

When i try to buy i got RBC error. So cannot select Google USD25. So do you have this issue?