Profoto Air Sync devices deliver sync signals with a very short delay, just 100?s in fast mode. Signal connections are made with either a hot shoe or a cable. These small, handheld devices weigh only 70 g (2.5 oz) including batteries. They pack a lot of functionality and reliability into an easy-to-use control panel. Operating at 2.4 GHz, they are approved for world wide use. Profoto AirS / Air Sync systems  can also operate with external receivers on older generators or other brands. Profoto Air Sync syncs / triggers flash generators or cameras, in groups or individually with the same high performance as Profoto Air Remote. The Profoto Air Sync provides a simple solution when you do not need to control the power of your flash and only need to trigger it, with your camera. Profoto Air Sync can also be used as a receiver and sync generators without built in Profoto Air.