ePacket is a service provided by China EMS, many Chinese ebay sellers and Aliexpress sellers would like to use ePacket, because it is totally trackable, fast and the shipping price is much lower than DHL/Fedex.
The ePacket tracking number usually starts with letter "L", it is much faster than China Registered Air Mail(number starts with letter "R"), a little bit slower than EMS express(starts with "E"). Usually the delivery time is around 7 to 10 days. After the ePacket parcel arrived in United States, these packages receive First-Class Mail service with Delivery Confirmation service.
Why choose ePacket ?
It is cheap. If you need to send 0.5kg product from China to US, dhl will cost at least ￥350; but if you choose ePacket, it will only cost ￥47, this is a big difference. After China EMS provided this ePacket service, the China seller and US buyer are very happy. With ePacket service, China and Hong kong sellers can send light weight products with a quite cheap service.