Open-Box, new item TCM Instant ConversionTT685II adds TCM function, supports real-time conversion from TTL mode to manual mode. At the same time, this function helps you lock the proper exposure value ensuring every fire with an accurate expression of light. Build-in 2.4G Wireless X SystemBuilt-in Godox 2.4G wireless X system, integrated transceiver, 100m transmission distance, flexibly used in different occasions. If you purchase the Godox X system wireless flash trigger, you can realize remote control and triggering, which can expand more possibilities for image creation. Powerful FeaturesTT685II has HSS (up to 1/8000s), FEC, FEB, rear curtain synchronization, and other functions in TTL mode. There are 22 levels of power output from 1/1 to 1/128 in manual mode for you to adjust freely. At the same time, TT685II has two zoom modes: auto/manual. The flash coverage is 20-200mm. External Power PortTT685II is equipped with an external charging interface, compa