Selling as a group, Great deal! 2 Nikon SB-900 1 SU-800 COMMANDOR Yongnuo YN622N II SET UP Selling as I have moved to a different system The SU-800 Wireless Speedlight Commander provides wireless control of up to 66 feet for an unlimited number of Speedlights for up to three groups. It is compatible with the SB-R200, SB-910, SB-900, SB-800, SB-700, SB-600, SB-500 and SB-5000 Speedlight units and completely supports the Nikon Creative Lighting System (CLS) and compatible CLS cameras. The lighting system you design is only limited by your creativity. Bonus YN622N II Radio trigger The YN622N II i-TTL wireless flash trigger is a high performance master and slave unit that allows the use of multiple flashes through digital FSK 2.4GHz radio wireless transmission, allowing different different off-camera flash setups to be accomplished. The distance from the remote control unit reaches up to 100m, supporting 7 wireless channels and 2 groups.