Godox first TTL wireless flash trigger receiver X1R-S is suitable for Sony TTL Autoflash DSLR Cameras and Godox X1T-S, X2T-S, XPro-S transmitter. It can be used to trigger camera shutter, studio flash and camera flash Featuring multi-channel triggering, stable signal transmission, and sensitive reaction.Support for the Cameras with a PC Sync Socket. Built-in 2.4G wireless transmission Provides up to 100 meters further transmission distance and creative triggering methods. Wireless remote control and grouping system support 5 groups and 32 channels to triggering flash, Also own Extra-large LCD panel and 5 group buttons,Very suitable for novice learning. Godox X1R-S is different from other Receiver in that it has a lot of features.Fully Support TTL Autoflash, 1/8000s High Speed Sync, Flash exposure compensation, flash exposure lock, modeling flash etc. Specifications Brand: Godox Model: X1R-S Type: For Sony Compatible With: For Sony DSLR cameras (TTL autoflash); Support all cameras that have PC sync socket Build-in Remote System: 2.4 G wireless transmission Modulation Method: MSK Power Supply: 2 * AA batteries Synchronization Delay Set: Yes (0-10ms,use 100us as the unit) Zoom Setting: The focal length can be adjusted through the transmitter Display Panel: Wide LCD panel, backlight on/off Output Interface: Receiver: use a 2.5mm sync cord to output Memory Function: Settings will be stored 2 seconds after last operation and recover after a restart Receiver Size/Weight: 7 * 6.5 * 4.7cm / 68.5g Package Size: 11 * 5.5 * 11cm / 4.3 * 2.2 * 4.3in Package Weight: 192g / 6.8oz Package List 1 * X1R-S Receiver 1 * Cable 1 * Sync Cable 1 * Adapter Note: 1. Batteries are not included. 2. 1/8000s is achievable when the camera has a max camera shutter speed of 1/8000s.