Neewer DSLR Camera Shutter Release 320ft/100m Wireless Remote Control 2.4G 16CH Transmitter Receiver for Sony a900/a850/a700/a560/a550/a500/a450/a400/a350/a300/a200/a100/a77/a65/a57/a55/a35/a33/a37, Konica Minolta DIMAGE a2/a1/9/7Hi/7i/7/5/4/3/DYNAX 7D/5D 2.4GHz 16 channels transmitter receiver. Operating distance can reach up to 320ft/100m. Half-pressing to auto focus; Full-pressing to trigger shutter. You can change different shutter release cable to work with different cameras. Support single shooting, continuous shooting, bulb shooting, delay shooting.