Seasize was established in 2001 in Shenzhen, China, a city near Hong Kong. Seasize has witnessed the great mprovement of electronic industry during past years and has grown with the major industry players into a modern factory. Our mission is to deliver the most up-to-date GPS and tracking techniques to meet growing needs from navigation industries and security industries in the world. Through out the past years, we have served customers from Asia, North America, Middle East and Europe with excellent quality and best service and we will continue to explore the new frontiers. Our main product is MP3/4/5 Player, and USB dongle with ISDB-T digital TV, Settop box with ISDB-T digital TV, GPS tracker etc