Godox CT-16 wireless radio flash trigger features 16 selectable channels for camera-mounted flash setup.Wireless Functionality: Operates at 433MHz to trigger studio or outdoor flashes remotely.Compatibility: Designed for Canon, Nikon, and Pentax DSLR cameras featuring a standard hot shoe.Power Supply: The receiver is powered by two AAA batteries (not included).Sync Speed: Offers a maximum synchronous speed of up to 1/250 second.