Godox 16 Channels XTR-16S Remote 2.4G Wireless Power-control Flash Trigger Receiver for V860 Tt850 (XTR-16S) 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 Transmit Frequency: 2.4GHz wireless remote system Fit Flashes: Godox Ving camera flashes Sell by Letwing Digital, Godox new product!