Zone Control. Provides three independent zones of flash control when used with the PocketWizard Flex TT5.

Power Control. You’ll have six stops of flash control in 1/3-stop increments, with support for PowerTracking/E-TTL II and Manual modes.

Please Note: This item won’t trigger a PocketWizard on its own. You must also rent at least two PocketWizard Flex TT5 Transceivers. Also, you’ll need to download and install the PocketWizard Utility software to your computer to setup the system.