Godox X1N TTL 2.4G Wireless Remote Flash Trigger with 3 Pack Godox XTR-16S Receiver for Godox Witstro AD360 AD180 Speedlite Flash for Nikon DSLR Ultilizing build-in Godox 2.4G wireless X-system, the X1R-16S receiver can adjust flash power level as well as wireless triggering with X1 series TTL wireless flash Transmitter. Using XT series receiver and X1 series transmitter, TTL flashes and Non-TTL flashes can be used in combination, which offers great convenience and better light distribution for photographers. Model: XTR-16S Receiver Power Supply: 5V (Powered by flashes) use XT series Receiver in combination with X1 series Transmitter, set the X1 transmitter to M mode. XTR16/ XTR16S can't receive the parameters that emitted by the Transmitter in TTL and Multi modes. TTL wireless flash trigger multi-channel triggering, stable signal transmission, synchronization speed is up to 1/8000s