Godox Ft-16 Trigger 433Mhz 16 Channels Remote Wireless Power Control 1x Transmitter + 2X Receiver for Witstro Ad180 Ad360 Flash The trigger set consists of a transmitter (on camera) and a receiver (on-flash). Set power ratios of up to 16 groups of remote flashes Remote control lamp and focus lamp, and a buzzer switch The wireless power control flash trigger FT-16 is designed for versatile use. Support flash:Witkey series flash, Flash AD180 AD360,flash upgrade, flash upgrade version of D upgrade, GT series, GS series of Gemini Gemini(All are available in our amazon site)