1、It supports FP-sync (high-speed sync) up to 1/8000s and has a high guide number of 62. Produces balanced light, short flash continuous time, long range and high brightness. 2、Full auto photometry system, let photography be more convenient and easy. 3、High speed sync, up to 1/8000s, faster than shutter release. 90 degree vertical rotation and 360 degree horizontal rotation. 4、First-curtain Sync, Rear Sync, it can capture details and sense of depth of background. Get rich and saturated color at the same time. 5、Comes with a base mount, suitable for Nikon camera. Features: It supports FP-sync (high-speed sync) up to 1/8000s and has a high guide number of 62. Produces balanced light, short flash continuous time, long range and high brightness. Full auto photometry system, let photography be more convenient and easy. High speed sync, up to 1/8000s, faster than shutter release. 90 degree vertical rotation and 360 degree horizontal rotation. First-curtain Sync, Rear Sync, it can capture details and sense of depth of background. Get rich and saturated color at the same time. Comes with a base mount, suitable for Nikon camera. Specifications: Condition: 100% Brand New and High Quality Guider number: GN62 (ISO100, 200mm) Wireless Flash: Radio transmission Slave, Optical pulse transmission Master/Salve Flash mode: ETTL, M, MULTI Zoom range: Auto, 20~200mm (When using wide angle dispersion plate is 14mm) High speed sync: 1/8000s Master flash: Master optical pulse signal transmission Slave flash: Optical pulse SLAVE Canon/Nikon, light trigger, S1/S2, wireless SLAVE (NEED to upgrade the software first) Shutter Synchronization: Hight Speed Sync, Front-curtain Sync and Rear Sync Flash exposure compensation: Support (with an increment of 1/3 gear in +/-3 gear) Bracket exposure: Support Flash exposure lock: Support Modeling flash: Support AF Assist-focus:  Support Manual flash: 1/128~1/1 (with an increment of 1/3 gear) Frequency flash: 1~199Hz Recycle time: Quick flash less than 2s, ordinary flash less than 3s Wireless transmission distance: Radio, about 100m; optical pulse, about 20m Radio transmission channels: Radio, 4~16; optical pulse, 4 Flash ratio: 8:1 - 1:1 - 1:8 Flash Groups: Support for multiple flash grouping Power supply: 4 x AA size batteries (Alkaline or Ni-MH) (not included) External interface: Hot-shoe, PC synchronous interface, external charging interface, external expansion interface Software upgrade: Support Battery life: Flash 100-700 times Size: 79.7 x 142.9 x 125.4 mm / 3.1 x 5.6 x 4.9inch Weight: Approx. 700g Package Included: 1 x Flashlight 1 x Base Mount 1 x Storage Bag 1 x User Manual