Built-in Godox 2.4G Wireless X SystemOptical & 2.4G wireless transmission offer even sand stable output.With Built-in Godox 2.4G wireless X System, V850II is compatible with AD600, AD360II-C, AD360II-N, TT685C, TT685N, X1T-C, X1T-N, etc.In the 2.4G wireless transmission mode, when used as a master unit, V850II can set its group as M/A/B/C/D/E; when used as a slave unit, V850II can set its group as A/B/C/D/E. There are 1~32 channels to be chosen.Wireless TriggeringUtilizing Godox 2.4G wireless X system, V850II can be triggered and controlled by only a X1T-C or X1T-N transmitter(Sold separately).V850II can achieve 1/8000s high-speed sync functions when using in combination with high-speed triggers e.g. Godox Cells II Transceiver, X1 TTL wireless flash trigger, etc. Note: High-speed sync triggering mode is not available when V850II is mounted on the camera.With Godox X3-C Flash Trigger for Canon: Godox X3-C for Canon 1Dx Markll, 1DX, 5Ds/5Dsr, 5D lV, 5D Mark III, 5D Mark II, 5D, 7DMarkⅡI, 7D, 6D, 40D, 30D, 750D/760D, 700D, M5, M3, 5DII, 5DIII, 90D, 7DII, 850D, 800D, 6DII, 3000D, 1500D, 200DII, R5, M6III, R50, R6II, R7, RP, R1Dx Markll, 1DX, 5Ds/5Dsr, 5D lV, 5D Mark III, 5D Mark II, 5D, 7DMarkⅡI, 7D, 6D, 80D, 70D, 60D, 200DII, R5, M6III, R50, R6II, R7, RP, R, etc. Experience seamless versatility with the X3's two-way TCM, allowing for instant and effortless conversion between TTL mode and Manual Mode. Enjoy the convenience of swift transitions, giving you the flexibility to adapt to different shooting scenarios with easePackage Including: 1 x Godox V850II 1 x Battery for V850II 1 x Battery Charger for V850II 1 x Manual 1 x Cleaning Cloth 1 x Godox X3-C Flash Trigger for Canon