Offering full support for Sony ADI / P-TTL and featuring a built-in 2.4 GHz radio system, the Godox TT685S II Flash is a powerful, versatile lighting tool designed to simplify both basic and complex setups. With a guide number of 197′ at ISO 100 and a zoom range of 20-200mm, it delivers strong, adaptable illumination. The TT685S II functions as a full wireless master or slave with TTL support, and its updated design enables tilt from -7 to 120° and 330° rotation for greater flexibility and efficiency. A standout feature is the TCM (TTL Converted to Manual) function, allowing instant switch from TTL to manual mode, helping you lock in accurate exposures quickly for more controlled setups. Additional usability features include an intuitive rear LCD display and a 2.5mm sync port for wired connections.2.4 GHz X Radio SystemWireless triggering with a range of up to 328′Functions as master or slave unitSupports 32 channels and 4 groupsTransmitter compatibility: V1, AD200Pro, AD300ProReceiver compatibility: X1, X2, XPro, V1 transmittersSony ADI / P-TTL CompatibilityFull TTL functionality with high-speed sync up to 1/8000 secAutomated exposure and advanced flash functionsPowerful OutputGuide number: 197′ at ISO 100Zoom range: 20-200mmFlexible ControlManual power from 1/1 to 1/128 in 1/3 EV stepsTilt range: -7° to 120°Rotation: 330° for bounce and directional lightingTCM Function (TTL Converted to Manual)Instantly locks TTL exposure into manual modeIdeal for quickly setting manual levels on external unitsAdditional FeaturesOptical master/slave capability2.5mm sync port for wired triggeringQuick-release locking foot for secure mountingRuns on 4 AA batteries (alkaline or NiMH)Approx. 330 full-power flashesRecycle time: 0.1–2.6 secondsExternal power port supports PB960 battery packUSB Type-C port for firmware updates