Versatile Professional Flash Trigger - The QPRO-S wireless flash trigger offers functions like TTL, 1/8000s high-speed sync ( wireless flash mode is turned on your camera for the HSS function), multi-flash, manual flash, FEC, magnification, group modeling lamp control, group zooming, single-point triggering, and more. Additionally, it allows simultaneous adjustment of output values for all groups. Screen Magnifier Function - The LCD screen clearly displays flash settings and shows 5 groups at the same time. Double the group button quickly to switch the display from the settings for all groups (from A to E) to a magnified view of the settings for one group. This magnification function display the details relating to each group setting. Built In 2.4G Wireless Q System - Wirelessly trigger for Q3 Z1-S Z760-S NW420-S NW655-S S101-300W PRO/400W PRO thanks to the built in wireless Q system, or control other flashes without a Q system using a for QR receiver and a 2.5mm sync cord (all sold separately). Smart Connection with Wireless ID - The QPRO-S trigger features 5 groups and 32 channels for easy connection. Set the transmitter and receiver flashes to the same channel and wireless ID for communication. This avoid any interference from other photographers who are using the same flash and flash system. Wide Compatibility - The QPRO-S flash trigger can be quickly fixed on the camera with the metal hotshoe. Compatible with for A9 II A9 A7R V A7R IV A7 IV A7R III A7S III A7 III A7S II A7R II A7 II A7S A7 A7C A1 A6600 A6500 A6400 A6100 A6000 A99 A350. Note: Firmware upgrades are available to address compatibility issues. Supports TTL autoflash, multi flash, manual flash,1/8000s high speed sync,flash exposure compensation (FEC),single point triggering mode,and modeling lamp status control.In Manual mode, you can adjust the exposure values for multiple groups with ease. It's easy to use with 5 group buttons and 4 function buttons.The large LCD screen clearly displays 5 groups at the same time,you can also view each group's settings in details with magnification function. There are 9 customizable functions. Control and trigger up to 5 groups and 32 channels.Choose from 01-99 Wireless ID to avoid interference.Easily adjust the manual flash output power from 1/1 to 1/128 or 1/1 to 1/256, and the flash zoom coverage for each group. Selective transmission of data helps save battery power and extend battery life. Supports USB Type C firmware upgrade and wireless triggering via a 2.5mm flash sync cable. Flash Modes:TTL Autoflash,Multi Flash, Manual Flash Flash Exposure Compensation (FEC):Manual Sync Method:High speed sync (up to 1/8000s),second curtain sync Focus Assist:Yes Wireless Flash Functions:Transmitter Groups:5 Transmission Range:Up to 328ft/100m(without obstacles) Channels:32 (1-32) ID:01-99 Triggering Methods:Hot shoe,2.5mm sync cable Dimensions:3.35x2.17x1.97Inch/85x55x50mm Weight:3.53oz/100g Colour:Black Material:Plastic Package Contents: 1 * Wireless Flash Trigger Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.