Used Yongnuo RF602 Wireless Flash Triggers
Includes 2x Transmitters (RF-602TX), 4x receivers (RF-602RX).
Reliable manual flash triggers, allow the use of any standard manually controllable hotshoe flash on any standard hotshoe camera (Canon/Nikon/Pentax/Olympus/Panasonic etc).
Includes 1x CR2 battery for the transmitters (2nd transmitter will need a battery), receivers require 2xAAA batteries (not supplied).
2.4GHz wireless system
Range of upto 100m outdoors
15 channels
Can also be used as a camera remote, included is a Canon N3 connector, so you can use 1x transmitter/1x receiver to remotely trigger the camera, with the channels set differently, you can then use the second transmitter/3x receivers to trigger flashes.
Also included is 2x receiver to 3.5mm/6.3mm plug so they can be used to fire strobe units.
Will have some signs of rubbing from being in the camera bag if you look closely, but in full working order