setting of the VTX using your radio.
US legal 37 channels with raceband
0.1mW,25mW,200mW,600mW switchable
5V output to power FPV camera
Integrated microphone
30.5mm mounting holes
MMCX connector

2.Specifications
Input voltage:7-28V
Working frequency: 5.8GHz
Output power: 0.1mW,25mW,200mW,600mW
Current consumption: 0.1mW:45mA, 25mW: 125mA, 200mA:220mA, 600mA:280mA
Frequency range: 5658-5917MHz
Available channel: 37channels
Extra features: SmartAudio, PitMode
Video format: NTSC/PAL
Video band width:6.0 MHz
Audio carrier frequency: 6.5MHz
Antenna connector: MMCX-KE
Port connector:JST-GH,6-pin
Dimension: 38x22x7mm
Weight: 5.75grams excluding antenna and cable

3.Package included
1x FX877T transmitter
1x MMCX to SMA pigtail extension
1x power/video cable
(Locking connector,female JST for voltage in,female servo plug for video and 5V out.)
1x user manual