Profoto Air Remote TTL-O I bought this because it's for Olympus, but it's compatible with LUMIX. It's an essential controller for wireless use. Attach the remote to the camera's hot shoe and wirelessly connect AirTTL lights to the camera. In TTL mode, when you take a shot aimed at the subject, the Air Remote TTL communicates with the flash, and the best exposure is automatically obtained. With AirTTL, you can leave your light meter at home. You can shoot quickly. To increase control accuracy, first shoot in TTL mode to get the correct exposure, then switch to manual mode. Since the TTL mode settings are maintained, you can make final fine adjustments to the lights from there, and create the look you want. The Air Remote TTL is equipped with Profoto's High-Speed Sync (HSS) function, allowing you to use the flash at shutter speeds up to 1/8,000 second. Even in places where sunlight illuminates a wide area, HSS controls and shapes the light. When using the flash in combination with other light sources, you can take sharp, blur-free photos.