This $500 package comes with two S100 Receiver and two Radio. The S100 Receiver is a basic multi-band meter-level accuracy receiver capable of below signal reception:

GPS           L1  / L2C
GLONASS L1  / L2
Galileo      E1  / E5b
Beidou     B1I / B2I
QZSS        L1  / L2C

Once full function license is activated, S100 provides real-time centimeter level accuracy RTK solution, can record GNSS measurement for post-processing, and has functions described in S100 RTK Receiver User Guide and below. A FieldGenius for Android license is included with full function license activation.  

S100 MULTI-BAND RTK FEATURES:
* 7mm + 1ppm Accuracy
* Configurable as RTK Base or RTK Rover
* Functions as Bluetooth RTK Receiver for Mobile Android Device
* Brings Centimeter Level Accuracy for Android Mobile Device
* Support PPP
* USB Serial for Laptop Setup/Configuration/Monitoring
* 256MB Flash Memory Data Storage
* Support 1 / 2 / 4 / 5 / 8 / 10 Hz RTK Update Rate

The PACKAGE INCLUDES:
* Two S100 Multi-Band Receiver
* Two S100 USB Connection Cable
* Two 915MHz Lora Radio (> 10Km range)
* Two Antenna
* Two Radio USB Connection Cable 

Import tax is not included. Final cost depends on customs duty at the destination country.