Features: Adopts Godox wireless X-system Build-in 2.4G wireless transmission Superior performance Faster recycle time-Even light illumination-Large size LCD panel With flash overheat automatic protection function. When used with X1 TTL Wireless Flash Trigger (Sold Separately), can remotely trigger the TT600 flash and control the manual output, offering better user experience. High-speed sync (HSS): Can realize high speed sync when used with Godox Cell-II trigger or X1C/X1N TTL wireless trigger (Sold Separately), the max speed can up to 1/8000s (Depend on the cameras). It's particularly convenient when using the aperture to fill flash on portrait preferentially. Please note: The TT600 can NOT realize HSS when used on camera hot shoe. Support M /S1/ S2 modes, 20-200m auto/manual zooming. With C.Fn custom function settings. With flash overheat automatic protection function. Specifications: Guide No.(1/1 output @200mm):GN60 (m ISO 100) Vertical Rotate Angle:-7°- 90° Horizontal Rotate Angle:0 - 360° Power Supply:Ni-MH batteries (recommend) or 4*LR6 alkaline batteries Full Power flash times:Approx.230 times (2500mA Ni-MH batteries used) Recycling Time:Approx.0.1-2.6s (eneloop Ni-MH batteries of Panasonics used) Flash-ready Indicator:LED red indicator lights when the flash is ready to work Flash Duration:1/300s - 1/20000s Color temperature:5600±200K Wireless Function:Supports wireless Master & Slave function, Off Controlled slave group 5 Groups: A, B, C, D, E Wireless trigger distance:100m(2.4G wireless) Channels:1~32 Internal power:4*AA batteries Battery life:100-700 flashes Dimensions:64*76*190mm Net Weight:400g (Battery not included) Package Included: 1 x Godox Thinklite TT600 Flash 1 x Protection Bag 1 x Mini Stand 1 x User Manual