EACHSHOT Godox TT685/N TT685N Build in Receiver Speedlite High-Speed Sync External TTL For Nikon Flash D80 D90 D7100 D5100 D5200 D3100 D3200 With X1N Transmitter + EACHSHOT Color Fliter + Diffuser Applies to for Nikon andCompatible with i-TTL autoflash. Guide No.: 60 (m ISO 100) Recycle time: Approx. 0.1-2.6 seconds (Ni-MH batteries forPanasonic). Power Supply: AA batteries: Ni-MH batteries (recommended) or 4*LR6 alkaline batteries Exposure control system: E-TTL II autoflash and manual flash