Attach to hot shoe to wirelessly connect camera and AirTV light Shoot in TTL Mode for fully automatic point-and-shoot shots Shoot in HSS Mode to shape light in broad daylight Switch from TTL Mode to Manual Mode with settings intact Sync and manually control any Profit light compatible with Air Intuitive and easy to use user interface Long operating range of up to 300 m (1, 000 ft.) 8 digital channels; controls up to 3 groups of lights per channel USB port for firmware upgrades Approved for worldwide use