APM Pixhawk Flight Control YYRC 3DR Radio Telemetry 1000MW  433Mhz Air and Ground Data Transmit Module with OTG. It is capable to provide wide range of depends on the atmospere.

Features :
Independent 1W signal amplifier
Both modules have the same design and have a Micro USB TTL port, making them both suitable for usage both on the ground and in the air.
provides three different types of cable (5P for APM and 6P for Pixhawk) OTG
Up to many kilometers, use a little omnidirectional antenna.
There are available bidirectional amplifiers for a wider range.
Unclosed-source hardware
Package contains:
1 × 1000MW 3DR Radio Telemetry (433 MHz)