Roma Electronics in Berkeley specializes in solving the issues that arise from differences in international voltages. The store has voltage transformers, converters and 110, 220 and 240 volt appliances, as well as cell phones, luggage and other travel items. In addition, the store transfers DVDs and VHS tapes to and from PAL, NTSC and SECAM. While you're there, drop by Chandani, the Indian jewelry store, which shares the space.