The Canon Speedlite 470EX-AI Flashgun is a powerful, mid-range flash for taking professional portraits. Features Auto Intelligent (AI) bounce which automatically adjusts to work out the optimum bounce position to eliminate unwanted shadows for natural looking end results. This flash has a maximum guide number of 47m for greater lighting reach for which produces high-quality images over a longer range. Trigger your speedlite remotely and link to other units for creative lighting. A LCD panel displays all the flash settings and is extremely easy to use. Powered by 4x AA batteries.