Yongnuo RF-603N II N3 Wireless Flash Trigger for Nikon D600 D5000 D7200 RF-603 II adopts a global free FSK 2.4GHz wireless channel, the remote control distance may reach to 100m, and suitable for RF-603I. RF-603 II wireless flash trigger kit is formed by two same transceivers. It can be set to single transmit state (TX), can be set to transceiver state (TRX). Transmitter supports single contact triggering, supports wireless wakening up and triggering the flash through the camera hot shoe, with PC sync cable (optional) can be trigger studio lights, with camera shutter connecting cable can realize wired / wireless shutter release remote control, supports controlling multiple cameras and flashes at the same time. The highest flash sync speed up to 1/320 second (some of models may only reach to 1/250s or less, difference combination of models of flash and camera using may achieved difference flash sync speed). Suitable for Nikon D600 D610 D90 D3000 D3100 D5000 D5100 D5200 D5300 D7000 D7200.