Communication range up to 100M. Function 1: As a Wireless Flash Unit Trigger The flashes being mounted on these transceivers can be wirelessly synchronously triggered. It is Hotshoe Pass-through, you can use a flash on top of your camera. It has "wake-up" function so you can wake up your flash just by pressing the shutter release button. Function 2: As a Wireless Shutter Release It can instantly trigger the shutter without disturbing the camera in the distance. Function 3: As a Wireless Studio Flash Trigger Using the Studio Flash Sync Cable, these transceivers can wirelessly synchronously trigger the Studio Flash(es). It is a good kit for studio photography.
Specifications: Type: FSK 2.4GHz wireless remote control system Transmission distance: 100m Channels: 16 channels Group: 6 Groups Shutter release: half-press, full-press Shutter interface: 2.5mm socket Studio flash light interface: standard PC socket Max Sync Speed: 1/320 second Battery: 2 * AAA batteries(not included) Package size: 13.5 * 10 * 4.5cm / 5.3 * 3.9 * 1.8in Package weight: 200g / 7.06oz