Godox has thought about every aspect to simplify the use of the AD600Pro II when combined with the separately available X3 trigger. Made for instant synchronization with the X3, the AD600Pro II lets you focus on your visual creation. This wireless sync function will optimize your photo workflow, cutting down the time you normally spend managing complicated channels and ID settings. Simply press the wireless sync option on both your X3 and the AD600Pro II to achieve quick synchronization.