The TBS Crossfire Nano RX Pro is a higher telemetry output power option of the de-facto FPV standard receiver. It packs up to 500mW of output power, and will ensure that your 50km flights occur without ever losing telemetry.
Specifications
 
Weight
0.5g (receiver only)
Size
11mm x 18mm
Requires
Firmware V6.14
Input Power
+3.3V to 8.4V
Includes
 
1x TBS Crossfire Nano Receiver Pro
1x TBS Crossfire Immortal T V2 Antenna
1x Spare shrink tube
6x 30awg silicon connection wires (2 black, 2 red, 1 white, 1 yellow)
1 x pin header 1x4