Cowboystudio 16-Channel Wireless Remote Trigger Switch Wireless Shutter Release Trigger for Sony Alpha Minolta DSLR A100, A200, A300, A350, A380, A500, A550, A700, A850, A900 One (1) Remote Shutter Receiver^One (1) Remote Shutter Transmitter^One (1) User Manual^One (1) Alkaline Battery 23A 12V^The follow model of cameras are compatible with this wireless trigger, Sony Alpha A100, A200, A300, A350, A700, A900 Minolta Dynax 5D, 7D, 9, 7, 5, 4, 3, 807si, 800si, 700si, 600si, 505si