EWRF 48CH Adjustable Power VTX with FC OSD Control & PitMode (RP-SMA)

EWRF e708TM3 48CH VTX with 4 Power Modes & SmartAudio

Features:

• Adjustable power modes: 25mW/200mW/600mW/OFF (Pitmode)
• Smart Audio function for BetaFlight OSD control
• Easy push-button channel / power selection 
• 48 channels / 6 Bands - includes Race Band channels compatible with Fatshark & ImmersionRC gear
• 5V Onboard quiet switching regulator for FPV camera  
• Flexible 6-25v (2s-6s input) 

VTX with Smart Audio, it works exactly as TBS Unify: Solder the "PWM" wire from the VTX to the FC, choose a spare UART port (TX), then set that port in betaflight to smart audio.