Godox FT-16 Wireless Power Controller Remote Flash Trigger + 2Pcs Godox FTR-16 Receiver for Godox Witstro AD180 AD360 Speedlite Flash 16-selectable flash groups. Wireless triggering of flashes. 50 meters above the regulation distance, maximum sync speed of 1 /250 sec. Switch the on-or-off of the modeling light or AF-assist beam, & buzzer. Supports two power display mode ( 5.0-10.0 or 1/1-1/128 ).