I just got back from a trip to Hongkong and I have learned another lesson when going abroad. Be sure to check the goods that you buy because there is no way to return for a refund of replacement. There were the cheap USB sticks that were being sold in the flea market for less than a dollar (USD) which my husband instantly declared them to be fake. When we asked if there is way to test the USB, the vendor said the USB sticks are guaranteed to work but no laptop or desktop to test them. In the farther portion of the flea market, we bought some t-shirts and had a good chat with the English-speaking vendor who whispered that those USB sticks are indeed not working, just for decoration. So there, especially with electronic items, be sure to test them fully before purchasing.