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 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, 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 Control It With Just Your Fingertips, Greatly Improving Work Efficiency. 4. High-Definition Oled Screen, Silky Smooth Touch, The Flash Trigger Has A High-Definition Oled Touch Screen, The Control Is Smooth And Fast, And The Display Effect Is Vivid And Delicate. No Matter What The Lighting Environment Is, You Can Adjust The Screen Brightness By Sliding The Brightness Setting Bar Left Or Right To Suit The Needs Of The Environment. 5. The Flash Trigger Is Also Equipped With A Screen Lock Function To Prevent Accidental Touches During And Help You Concentrate On Your Creation. Tcm Conversion Function, Efficient And Flexible. The Flash Trigger Is Equipped With Tcm Conversion Function, Allowing You To Quickly Switch Between The Efficiency And Convenience Of Ttl Automatic Flash Mode And The Precision And Detail Of Manual Flash Mode, And Flexib Respond To Different Scenarios. Built-In Lithium Battery:3.7V-850mAh Charging time:about 2 hours Standby time:about Support:TTL auto