Your phone has an infrared emitter? you have a camera that supports infrared? Well, I have good news for you, you no longer need to lug around a remote control ir to take in freedom, just your smartphone, and with a click you have your own pictures! you have multiple camera bodies? perhaps from different manufacturers? why risk taking the wrong remote, find the exhaust or leave it at home, if only for emergencies, your smartphone is here to make your life easier, thanks to applications like "reflex ir remote control" (irDSLRCommander) the remote control in a 'app only supports Nikon, Canon, Canon D, Fuji, Minolta, Olympus, Pentax and Sony!