potasen (hk) technology limited is a professional manufacturer specialized in the design, exploitation and production of fashionable MP3/MP4 player and USB Flash Disk and other digital products. According to ISO9001 operation system, the business has developed to over 100 countries and areas. Such as South America, Europe, Middle East and Asia, etc. Up to now, we have been appointed the OEM manufactory for many famous companies both domestic and oversea markets as well as gained so much excellent reputation