Because this is a radio remote, it can trigger your camera up to 320' (100 m) away, even when it's not in the line of sight of the transmitter (unlike infrared remote controls). You can even trigger your camera from around a corner! Not only can you trigger your shutter with this set, you can set autofocus and trip the shutter using the dual-function release; take multiple shots with a single press of the trigger; control the length of a long exposure; delay the trigger for 2 seconds; trigger your camera either wirelessly or wired (wired triggering works even if the battery in the receiver is dead or missing!); and (with additional optional receivers) trigger multiple cameras at the same time.
LED indicators confirm pre-focus and exposure. The transmitter operates on a 23A 12V battery that will last 3 years under normal circumstances. The receiver uses a CR2 3V battery that's good for approximately 20,000 triggers. The included RCC-01 camera cable release is compatible with the Olympus OM-D E-M1 and E-M5, Pen series (except for E-PL1), XZ1, E520, E510, E420, E410, E400, E450, E620 and SP-57OUZ, SP-56OUZ, SP-55OUZ, and SP-51OUZ cameras, and the included RCC-N2 cable is compatible with Nikon D90, D600, D3100, D3200, D5000, D5100 and D7000 cameras. By simply using other (optional) cable releases, you can use the transmitter and receiver with dozens of other camera models.