It's a new version of CTR-301, which called CTR-301P. We designed it with a PC sync port according to the most of customers' request, we replaced the previous " TEST " bottom to the PC port. you can mount the flash directly on this receiver or hanging it down on the light stand where it can be connected via the PC sync port. It's very helpful for you.

This RF-602 is using FSK 2.4GHz wireless frequency, suitable to use this free channel in many countries, guarantee of the transfer speed, distance and stability. There are three kinds of plugs, you can not only use it as a wireless remote shutter release, but also can use it as a flash trigger, you can connect them to control many types of flash speedlite and camera.

New designed Flash Trigger RF-603, it's a updated version to RF-602, it has the function of Flash Trigger to fire flash Speedlite, Flash Trigger to fire Flash Strobe light, Remote Shutter Release and Wireless Remote Switch. What's more, you can use the flash trigger and remote shutter release function simultaneity.