Godox Xpro-S Sony TTL Wireless Flash Trigger Transmitter,2.4G Wireless X System, As A Master Flash Unit to Control Sony Camera Flashes, As A Slave Flash Unit Under Control of Sony Camera Flashes. Compatible Sony Camera Models: For Sony A77, A77 II, A99, A9, A7R, A7R II, A350, ILCE-6000L, DSC-RX10 digital camera More Features: - 16 groups and 32 channels to wirelessly control and trigger - Flash exposure compensation: Yes, 3 Stops in 1/3 stop increments - Manual Flash: 1/1 - 1/256 Power Output Adjustable - Support Type-C USB Ports upgrade firmware Flash Exposure Control TTL Autoflash: Sony Manual flash mode: Yes Multi (Stroboscopic) flash mode: Yes Function: HSS (High-speed sync): Yes Second-Curtain Sync: Yes Flash exposure compensation: Yes,±3 Stops in 1/3 stop increments Flash exposure lock: Yes Auto Focus Assist: Yes Modeling Lamp Control: Control the modeling lamp by the flash trigger Beeper: Control the sound of the flash trigger Wireless Setting: The receiver end can control the camera shooting through the 2.5mm sync cord jack ZOOM setting: Adjust the ZOOM coverage value from the transmitter TCM function: Transforms the TTL shooting value into the output value in M mode Firmware upgrade: Upgrade through the Type-C USB port Memory function: Settings will be stored 2 seconds after last operation and recover after a restart Wireless Flash: Wireless Signal Range: >328 feet / >100 Meters Remote System: 2.4GHz >Modulation Mode: MSK Channels: 32 Wireless ID: 01-99 Groups: 16 Dimensions: 3.5x2.3x2.0"/ 90x58x50mm Display: Large LCD panel with customizable backlight Package Including: 1 x Godox Xpro-S Trigger 1 x Product Manual