1. This is the tracking of your parcels:
Number: LT569249462CN
Package Status: In Transit

Destination Country: United States
2016-12-13 00:20 CHINA, Acceptance, Your item was accepted at 12:20 am on December 13, 2016 in CHINA.

Origin Country: China
2016-12-13 00:20 Guangdong postal courier logistics international sales office Guangzhou City Range Rover station cast was a pickup (embrace cast member name: Mo steamer, Tel:)
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Number: LT592876497CN
Package Status: In Transit

Destination Country: United States
2016-12-17 13:46 Origin Post is Preparing Shipment, We have received notice that the originating post is preparing to dispatch this mail piece.
2016-12-17 13:46 CHINA, GUANGZHOU EMS, Processed Through Facility
2016-12-16 00:13 CHINA, Acceptance

Origin Country: China
2016-12-17 04:03 Guangzhou, left Guangzhou to Chicago (go)
2016-12-16 00:13 Guangdong postal courier logistics international sales office Guangzhou City Range Rover station cast was a pickup (embrace cast member name: Mo steamer, Tel:)
======================================
Number: LT611376332CN
Package Status: In Transit

Destination Country: United States
2016-12-21 10:06 Origin Post is Preparing Shipment, We have received notice that the originating post is preparing to dispatch this mail piece.
2016-12-21 10:06 CHINA, GUANGZHOU EMS, Processed Through Facility
2016-12-19 23:26 CHINA, Acceptance

Origin Country: China
2016-12-21 04:46 Guangzhou, left Guangzhou to Chicago (go)
2016-12-19 23:26 Guangdong postal courier logistics international business sales department Higashiyama Range Rover voted station has been received (the embrace cast member name: Deng June, Tel:)
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2. On tracking addition to parcel LT569249462CN is this:

2016-12-16 00: 00: 00.0 12:55:00 Guangzhou leaves the processing center and sends it to USORDF = ISC CHICAGO IL (USPS)

3. So all the above parcels are On Route/In Transit to USA Chicago. I would not be surprise that all your parcels above got delayed by the Holiday Seasons, Smug in China that prevented Aircraft to depart and the rescheduling of mail bag.

4. Most parcel that departed from Guangzhou to Chicago are late in the USA. We had here one person from USA that receive his parcel after 66 days from receive in China to delivery in USA.

5. Just keep tracking your parcel on the USPS site for any new movement.

Thanks.

1. My honest guess would be yes they have left China. But don't forget that your parcels might have been doing this also:

Multi-hop routing:
Routing is a whole separate matter, but suffice it to say that “lowest cost” tends to win out over “fastest speed”. Mail shipments may transit many countries en route to their destination.

Thanks.