scan setting, one-shot and multi-shot setting, control of the modeling lamp, adjusting all groups' output value simultaneously, etc. The newly added scan setting function can help automatically detect the channel with the least interference. Support firmware upgrade via. Type-C USB cable, wirelessly triggering by 3.5mm sync cord jack. Specifications: Brand: Godox Model: X2T-O Compatible Cameras: For Olympus/ for Panasonic DSLR cameras(TTL autoflash); Work with cameras with PC sync socket Compatible Mobile Phone: For iPhone, for Huawei, for Samsung (Please refer to the compatibility list on the manual to know more about the compatible models.) Power Supply: 2 * AA battery(battery is not included) TTL Autoflash: TTL Flash Exposure Compensation: ±3 stops in 1/3 stop increments Wireless Shutter Release: The receiver can control the camera shooting via. 3.5mm sync cord jack Zoom Setting: Adjust the focal length of the flash through the transmitter Firmware Upgrade: Support program firmware upgrade via. Type-C USB cable Memory Function: As long as 2 seconds after setting parameters, the parameters will be remembered, and the original data will be recovered once restart Wireless Transmission Range (approx.): 0-100m Built-in Wireless System: 2.4G wireless transmission Modulation Mode: MSK Channels: 32 Wireless ID: 01-99 Groups: 5 Display: Large LCD panel, backlighting ON or OFF Item Size: 7.2 * 7 * 5.8cm / 2.83 * 2.76 * 2.28inch Item Weight: 90g / 3.2oz Package Size: 10.8 * 10.5 * 7cm / 4.3 * 4.1 * 2.8inch Package Weight: 180g / 6.3oz Package List: 1 * Godox X2T-O TTL Wireless Flash Trigger 1 * User Manual (English & Chinese) Note:Batteries are not included. 1/8000s is achievable when the camera has a max. camera shutter speed of 1/8000s.