Oplink mini Air & Ground 433mhz CC3D Revo Telemetry Kit Data Transmission For Qav250 450

Package includes:
Oplink mini Air x1
Oplink mini Ground x1
Antennax2
cablex3

 mini manual.pdf

Include:

Oplink mini Air
Dimensions:34mm x19.5mm x10.5mm (included case)
Frequency:433mhz
Input Voltage: +5v

Oplink mini ground
100mw Standalone Radio Modem
3 IO Ports: Micro-B USB, Mainport & Flexiport
Dimensions: 38mm x23mm x10mm (included case)
Input Voltage: +5v
Frequency:433mhz