Fangrui Product Details 1. Touch Screen Ttl Wireless Flash Trigger, A New Breakthrough, 48g Featherweight Body, Bringing Unprecedented Portability. The Touch Screen Design Combines Chinese Operation Interface And Humanized Interaction Logic, Making The Operation Experience Better Than Ever. The Flash Trigger Has Many Functions Such As Ttl And High-speed Synchronization. It Has Strong Performance And Stable Control, Which Can Help You Easily Control The Light, Express Creativity And Improve Efficiency. 2. Uniquely Exquisite, Lightweight And Light-controlling, The Flash Trigger Adopts A High-quality Full-color Touch Screen, All Parameters Can Be Adjusted By Touch, And Has Humanized Interaction Logic - The Main Interface Can View And Adjust Multiple Groups Of Parameters. 3. Click To Enter The Single The Parameters Of The Group Can Be Finely Adjusted, And The Groups Can Be Switched By Sliding Up And Down. In Addition, The Flash Trigger Also Supports Ttl, High-speed Synchronization And Other Functions. You Can Easily Select And Cont