Amazon.com : AODELAN Flash Trigger Transmitter and Receiver with Universal Hot Shoe for Canon, Nikon, Olympus, Panasonic, Pentax, Fuji, Samsung, Sony : Electronics
Stuff Dave Likes: Nikon SU-4 Wireless Slave Flash Controller
Nikon SU-4 Wireless Remote TTL Flash Controller | MY CAMERA CABINET
Amazon.com : YONGNUO YN560-TX II LCD Flash Trigger Remote Controller for Nikon and YN560IV/III YN660 with Wake-up Function for Nikon Cameras : Electronics