Product description V860IIF Flash Guide Number (1/1 output @200mm): 60 (m ISO 100) Flash Coverage: 14 to 133mm (APS) or 20 to 200 mm (135 system) Auto zoom: flash coverage set automatically to match the lens focal length and image size Manual zoom Swinging/tilting flash head (bounce flash): 0 to 360░horizontally and -7░to 90░vertically Flash Duration: 1/300 to 1/20000 seconds Exposure Control Exposure control system: TTL autoflash and manual flash Flash Exposure compensation(FEC): Manual. FEB: ▒3 stops in 1/3 stop increments(Manual FEC and FEB can be combined) Sync mode: High-speed sync (up to 1/8000 seconds), first-curtain sync, and second-curtain sync Multi Flash: Provided (up to 100 times, 200Hz) Wireless Flash (optical transmission and 2.4G transmission) Wireless flash function: Master, Slave, Off Controllable slave groups: 3(A,B,C) Transmission range: ?100m Channels: Optical: 32(1-32) Slave-ready indicator: Two red indicators blink Auto Focus Assist Beam Effective range (approx.): Center, 0.6-10m/2.0-32.8 feet; Periphery, 0.6-5m/2.0-16.4 feet Power Supply Power Source: 11.1V/2000mAh Li-ion polymer battery Recycle time: ?1.5seconds. Red LED indicator will light up when the flash is ready Full power flashes: Approx.650 Sync Triggering Mode: Hot Shoe, 2.5mm Sync Line,Wireless Control Port Color Temperature: 5600▒200k Size: 64 x 76 x 190 mm Weight with battery: 540gPackage Listing 2 x Godox V860II-F flash 1 x Li-ion battery 1 x Charger 1 x Mini stand 1 x Protection case