HDE Wireless IR Remote Control Shutter Release This Infrared Remote Control allows the user to trigger camera shutter, focus and 2 second exposures. It can prevent shake for super macro shots, telephoto shots, and bulb exposures. Operation Distance: 20 Meters. With 2 second button shutter will release in 2 seconds; Also with Shutter button, shutter will release immediately Compatible with Sony Alpha DSLR A230 A2900 A330 A380 A390 A450 A500 A550 A700 A850 A900 NEX-5 replaces RMT-DSLR1