STM40 is a 25/200/500mW adjustable power transmitter
Come with 48CH,can match with SKYFC40.
With long press and short press CH/BAND key to change the CH and BAND
Channel and Band display to show from 1~8 and A,B,E,F,R,L band
With long press and short press the RF power key to change the power.
5.8G 25/200/500mw 48CH
Mini size with 36mm*36mm*8mm
Light weight with 7g
Nex MMCX antenna socket
1x power cable