EUB/ ePacket (E邮宝) is an economical and fast courier service by China Post EMS and USPS. Normally it will take about 1 to 2 weeks to arrive USA from China. ePacket (E邮宝) is an exclusive shipping service for eBay customer only. ePacket (E邮宝) tracking number is a 13-digit code starting with letter “LK” and ending with “CN”. i.e. LK123456789CN.