Yongnuo RF-602 2.4GHz Wireless Flash Synchronized Trigger Remote Control for Nikon SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24 Cameras Yongnuo RF-602 2.4GHz Wireless Flash Sync Trigger Remote Control - RF602TX Transmitter - RF602RX Receiver - Shutter Release Cable - Sync Cable with 6.35mm Plug Size - Adapter with 3.5mm Plug Size - 2x AAA Battery for Receiver - CR2 Lithium Battery for Transmitter - Yongnuo Warranty Compatibility: Nikon SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24 Cameras Flash synchronization speed: 1/250s Transmitter distance: 100m / 328.08' Release: Half-way press, Full-way press