This is the Nissin Di700 Air 1 Wireless Flash Commander Nikon [NFG014NC] Free yourself from cables and the line-of-sight demanding optical slave modes with the Nissin Air 1 Commander, featuring the Nissin Air System with 2.4 GHz radio transmission for wireless master TTL control over NAS-compatible flash units. This unit is compatible with Nikon cameras that utilize i-TTL metering and offers a triggering range of up to 98". Also, it features eight channels and three groups for setting up numerous flashes with different settings and modes all from the commander unit. High-speed sync is supported with a maximum sync speed of 1/8000 second along with compatibility for slow, 1st 2nd curtain sync modes. The zoom setting of the flash can also be manually adjusted from 24-200mm along with the power from 1/1 to 1/128. The Air 1 features a colour LED control panel to view settings and make adjustments as well as an AF assist beam for focusing in low light conditions. Additionally, it runs on 2 AAA batteries. Features: Nissin Air 2.4 GHz Radio TTL System Compatible with Nikon i-TTL Wireless Master TTL Functionality Triggering Range: 98" Eight Channels Three Groups (A, B, C) Flash Sync Speed up to 1/8000 Second Manual Zoom Adjustment from 24-200mm Manual Power Adjustment from 1/1-1/128 Colour LED Control Panel AF Assist Beam Runs on 2 AAA Batteries Specification: Mount Shoe Frequency 2.4 GHz ISM band radio transmission Exposure Control Manual/TTL Vari-Power 1/1 -1/128 TTL Dedication Yes Zoom Range Full frame: 24-200mm Flash Interval 10 flashes per sec Maximum Flash Synchronization Speed 1/8000 sec Flash Ready Indicator Yes Compensation -2 EV to +2 EV (in 1/2 EV steps) Wireless Transmission Method: RF Distance: Up to 98"/30m Wireless Communication Channels 8 Channels Wireless Groups 3 Gro