This X2T TTL wireless flash trigger from Godox is one that is dedicated to Sony’s TTL system and operates on a 2.4 GHz frequency. It can fire a single flash or multiple dedicated flash units within 5 groups, 32 channels, and 99 ID settings to avoid interference from other nearby systems. For the added convenience, the integrated scan setting function can help you automatically locate an ID channel with the least interference. You can also operate the flash units within a wireless range up to 328′.