However, the "Achilles' heel" of the original release was its cable. The TTPOD 1007 was designed to be used with a special in-line DAC/amp cable that applied active equalization. Without the correct firmware, the earphones sound hollow, veiled, or overly bassy.
Official versions are almost entirely in Chinese. There is no official "global" or English-native release for the modern 10.x series.