Main Features:-Built-in Godox 2 Wireless X systemOptical & 2 wireless transmission offer even and secure output integrated Godox 2 wireless X system, TT600S is well matched with AD360II-C/AD360II-N/TT685C/TT685N/X1T-C/X1T-N,etc the 2 Wireless transmission mode, when used as a slave unit, TT600S can set its organization as A/B/C/D/E There are 1~32 channels to be chosen TriggeringUtilizing Godox 2 wi-fi X system, TT600S can be triggered and controlled by means of just a X1T-C or X1T-N transmitter(Sold separately) can obtain 1/8000s high-speed sync applications when using together with high-speed triggers Godox Cells II transceiver, X1 TTL wi-fi flash trigger,etc(Note: High-speed sync triggering mode isn't always accessible when TT600S is fixed onto the camera)Equipped with a wireless management port and a three sync twine jack, TT600S has multiple triggering tricks FunctionsGN60(m ISO 100,@105mm), 22 steps of power output(1/1~1/128)~2 recycle time, 230 complete energy flashes(using 2500mAh Ni-MH batteries)Support M/Multi/S1/S2 modes,20-200mm auto/manual zooming C custom operate settings, concentration assist lamp buzz button,over-temperature protection,etc LCD PanelWith high-resoluction LCD panel to supply clear and simple operation the choose dial to make a decision the amount of the settings Listing1 x Godox Thinklite TT600 Flash1 x Protection Bag1 x Mini Stand1 x User ManualNote: Do not consist of the Transmitter