


Review Summary
It's a new version of CTR-301, which called CTR-301P. Yongnuo designed it with a PC sync port according to the most of customers' request, they 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.
Functions
Trigger the flashlight separately (without flash transmitter) because there is a very sensitive light senser on this receiver
Trigger the flashlight with the CTR-301 transmitter together
1/4 stand Tripod screw hole can be mounted into the tripod, ballhead and so on
Trigger the video flash via the PC cable ( The little plug is 2.5mm, the big plug supports 6.35mm standard video flash jack)