1. This is the full tracking of your parcel:
Package Status: In Transit
Destination Country: United States
2016-12-15 13:48 CHINA, SHENZHEN EMS, Processed Through Facility, Your item has been processed through a facility in SHENZHEN EMS, CHINA at 1:48 pm on December 15, 2016.
2016-12-14 19:17 Origin Post is Preparing Shipment
2016-12-14 19:17 CHINA, Acceptance
Origin Country: China
2016-12-15 13:55 Shenzhen, left Shenzhen to Shenzhen postal courier company (Hong Kong) business unit
2016-12-15 13:55 Shenzhen, Shenzhen City, leaving to New York's Kennedy airport
2016-12-14 19:17 Shenzhen, express and logistics company, Shenzhen Huawei Center Sales Department has been received (the embrace cast member name: Zeng Xiangren, Tel: 15012895343)
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2. There are delays for parcels incoming to JFK, there is to much parcels and JFK can handle so much. If by 19 Jan you don't see any new tracking on the USPS site then just open a dispute.
3. You could in the meantime advise your seller that you have not receive your parcel. He might be able to call China Post EMS: 11183, to find out more information about your parcel.