Amazon.com : Wireless Flash Trigger 2.4 GHz with Transmitter and Receiver for Canon, Nikon, Panasonic, Olympus, Fuji, Pentax, Samsung,Sony(Except Sony Flashes) : Electronics
Amazon.com : GODOX CT-16 16 Channels Flash Trigger Transmitter Receiver Set for Canon Nikon Pentax Olympus DSLR Camera Studio Flash : Electronics
Amazon.com : Godox CT-16 Wireless Radio Flash Trigger Receiver Kit,Fit Compatible for Canon Nikon Pentax DSLR Camera Studio 3-in-1 Flash Transmitter and Receiver : Electronics
YONGNUO RF-603 II C1 Radio Wireless Remote Flash Trigger for Canon 800D 760D 750D 700D 650D 600D 77D 1300D 80d 70D 60D M5 M6 - AliExpress