The Flashpoint Zoom II AA R2 TTL Speedlight for Nikon is the modernized version of the popular on-camera Flashpoint Zoom TTL speedlight introduced in 2015. The Flashpoint Zoom II AA R2 TTL Flash for Nikon provides full R2 Remote iTTL and manual power connectivity and interaction with all Nikon strobe functions. From standard iTTL to Exposure Compensation (FEC), High Speed Sync, and an automatically zooming flashhead, all the way to complete iTTL II connectivity with other Nikon flashes. Four designated groups transmit control, and five receive options, combined with customizable advanced flash functions, the Zoom II AA R2 TTL Speedlight for Nikon flash takes you as far as you want to go.Love the Simplicity of AAAlkaline 1.5V AA cells are the universal power solution for virtually any locale, assuring dependable, uninterrupted flash photography. They are cheap yet full of energy, boasting up to 330 full power shots on a single set of AAs. While Lithium is a preferred energy source for some situations, the expense of replacement battery packs may deter the casual user. The battery modules are also dependent on recharging stations. AAs are readily available, deploy immediately, and can be carried with minimal concern for safety, storage space, and portability, particularly for aircraft travel.The Zoom's next-generation auto zoom head delivers exceptionally even coverage, and any photographer will appreciate the high Guide Number of 197