Godox X1T-S 2.4G TTL Wireless Flash Trigger Transmitter for Sony DSLR Cameras with MI Shoe e.g. A77II A7RII A7R A58 A99 ILCE6000L - with Pergear Cleaning Kit Built-in 2.4G wireless transmission, operating distance can reach up to 100 meters. Support GR group flash, max.5 groups & 32 channels. Applies to SONY DSLR Cameras with MI Shoe e.g. A77II, A7RII, A7R, A58, A99, ILCE6000L, etc. Support GR group flash, max.5 groups & 32 channels. Fully Support TTL autoflash, 1/8000s High-speed Sync, Second Curtain Sync, Flash Exposure Compensation, Flash Exposure Lock, Modeling Flash Control, etc. X1S transmitter can remote control the Godox Flashes wich has built-in 2.4G wireless X system. When using in combination with XTR-16 or XTR-16S receiver, X1S transmitter can remote control the Godox flashes wich do not have built-in 2.4G wireless X system. Big and clear LCD panel offers convenient operation. Support USB firmware upgrade. Versatile functions such as synchronization delay setting, wireless shutter release, zoom setting, C.Fn custom functions, etc. Built-in Remote System: 2.4G wireless transmission Modulation Mode: MSK Power Supply: 2 * AA(Not Included) Manual Flash: YesTTL autoflash: TTLMulti Flash: yes HSS: Yes Flash Exposure Compensation: Yes(stops in 1/3 stop increments) Flash Exposure Lock: YesFocus Assis: Manual open Modeling Flash: Yes(Setting on the camera) Sync Delay Set: Yes(0-10ms, use 100 as the unit) Modeling flash: ON/OFF Zoom Setting: Adjust the flash&#039;s focal length through the transmitter Memory Function Settings will be stored 2 second after last operation and recover after a restart Fully Support TTL autoflash, 1/8000s High-speed Sync, Second Curtain Sync, Flash Exposure Compensation, Flash Exposure Lock, Modeling Flash Control, etc. Fully Support TTL autoflash, 1/8000s High-speed Sync, Second Curtain Sync, Flash Exposure Compensation, Flash Exposure Lock, Modeling Flash Control, etc. Fully Support TTL autoflash, 1/8000s High-speed Sync, Second Curtain Sync, Flash Exposure Compensation, Flash Exposure Lock, Modeling Flash Control, etc. Big and clear LCD panel offers convenient operation. Support USB firmware upgrade. Versatile functions such as synchronization delay setting, wireless shutter release, zoom setting, C.Fn custom functions, etc. Applies to SONY DSLR Cameras with MI Shoe e.g. A77II, A7RII, A7R, A58, A99, ILCE6000L, etc. X1S transmitter can remote control the Godox Flashes wich has built-in 2.4G wireless X system. When using in combination with XTR-16 or XTR-16S receiver, X1S transmitter can remote control the Godox flashes which do not have built-in 2.4G wireless X system. Complete Manual exposure from 1/128 to Full power (1/3rd Increments) GR Group Mode A / B / C / D / E (5 Groups) Ratio Group Mode M A / B / C 32 Channels Built-in 2.4G wireless transmission, operating distance can reach up to 100 meters. 1 * X1T-S Transmitter 1 * Pergear Clean Kit