Aputure Trigmaster Plus Kit (2x Transceivers) for Nikon, 2.4GHz Radio Remote Flash Trigger and Shutter Cable Release, for Nikon Digital SLRs D200, D300s, D300, D700, D800, D800e, D90, D3100, D3200, D5000, D5100, D5200, D7000,and SB-600, 700, 800, 900, 910 Premium-grade 3-in-1 multi-function radio trigger for flash, strobe and camera 16 channels, encrypted 433MHz with 360 ft range, sync speed of 1/250 sec, when in "flash" mode. Enabled AF with half press of the remote button when in "camera" mode, 2 sec, delay function in both modes. In "camera" mode, remote is able to do continuous and "Bulb" modes. Set "bulb" by pressing and holding the trigger button for 2 seconds, and press again to stop In Flash mode, the transmiter wakes up the sleeping flash, just in time for firing the flash. Includes a 24 Month Manufacturer Warranty