The top tier speedlite from Nicefoto for Nikon System offers users advance functions such as 2.4G wireless control. Features 1. 2.4G wireless master/slave, 2. Large power output GN=62, 3. Support 1/8000S Hi-speed, 1st and 2nd curtain sync 4. Master & Slave Canon and Nikon, S1/S2 5. Flash mode: * i-TTL flash * Multi flash(1~199Hz) * M flash(1/128~1/1 power range with±0.3) Specification Guide number: GN62（ISO100，200mm） Wireless Flash: 2.4G radio mater/slave Flash mode: i-TTL, M, MULTI Zoom range: 20～200mm (When using wide angle dispersion plate is 14 mm) High speed sync: 1/8000s Slave flash: Slave 2.4G RF, S1/S2 Shutter synchronization: High 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 Transmission distance: About 100 m Transmission channels: 15 Flash groups: Support for A/B/C groups Power supply: 4×AAsize batteries (Alkaline or Ni-MH is usable) External interface: Hot-shoe, PC synchronous interface, external charging interface Battery life: Flash 100～700 times Measurement: 79.7（L）×142.9（W）×125.4（H）mm Net weight: About 420g (not including batteries) Package include 1.Speedlite =1pc 2.Cloth bag=1pc 3.Manual=1pc