Compatible with a wide range of Nikon, Canon, Fuji, Panasonic, and Olympus cameras and flashes, the Pocket Wizard Plus IV Transceiver offers photographers the benefits of an on-camera TTL flash and a remote manual flash. It features a Quad-Zone Triggering function that activates or deactivates up to four zones of cameras or remote flashes. Use the Auto-Relay mode to trigger a remote camera in sync with one or more remote flashes. The transceiver’s backlit 1-inch LCD screen comes with a simple interface and quickly engages and displays all channels, zones, and modes via a keypad input.