The Nissin i60A is a show mount flash that has a Guide Number (GN) of 60 meters (ISO 100, 200mm lens) and can be zoomed to optimize coverage in a 24-200mm range. The i60A also has an integrated 2.4GHz radio receiver that is compatible with the Nissin Air System and Air 1 radio commander unit. Also built-in to the i60A is a TTL Optic Wireless Slave Mode as well as settings for 8 channels in A/B/C groups. The back of the i60A unit has a colorful LCD display and two control dials. The i60A can be powered with 'AA' batteries or with a high voltage powerpack port connection.