1. XPro-S Flash Transmitter is Fully Support Sony TTL Autoflash, 1/8000s High-Speed Sync, Multi Flash, Manual Flash, Flash Exposure Compensation, TCM Transform Function, Magnfication Function, One-Shoot & Multi- Shoot Setting, Group Modeling Lamp Control, Group Zooming, Adjusting All Groups' Output Value Simultaneously, etc 2.Add 01 to 99 Wireless ID settings,Which Can Only Achieve Triggering When the channels and Wireless IDs of the Master and Slave Unit are Set to the Same,Avoiding Signal interference effectively 3.11 Functions ,Extra-large LCD panel, 5 group buttons and 4 function buttons convenient manipulation.16 Groups and 32 Channels to Wirelessly Control and Trigger 4.Built-in 2.4G Wireless X System & Versatile Using Methods:e.g. As a wireless Transmitter for camera flash,outdoor flash and studio Speedlite; As a Wireless Speedlite Transmitter ;As a Wireless Shutter release Trigger;As a flash(without X system) trigger with 2.5mm Sync Cord Jack