The Nissin Air R Receiver for Nikon Flashes attaches to flash and accepts flash trigger signals from the Nissin Air 1 Commander. The receiver is capable to control one flash or many flashes up to 98 ft. (30m) away. It operates with TTL performance and can withstand for approximately 5,000 flashes. The system lets you to bring all Nikon TTL flashes into the Nissin Air System with 2.4 GHz radio transmission by mounting them to the Air R Receiver. Using an Air R Receiver the photographers can now set up and control numerous flashes in an off-camera setup with the ability to select between 8 channels and organize 3 groups. Connecting to a TTL flash is simple as the receiver has a hot shoe on the top for communication. For strobes and manual flashes, the Air R also has a PC sync terminal for basic connections. Mounting the receiver is simple as well with a cold foot on the bottom with a 1/4"-20 thread for stands. There is also a flip-out stand for placing directly on a flat surface. Additionally, it runs on 2 AAA batteries.Features: Accepts flash trigger signals from the Air 1 CommanderControl everything wirelesslyEight channels and three groupsHigh-speed synchronization up to 1/8000 sec.Lasts for approximately 5,000 flashes