Sunpak 018ST Digital Camera Flash Enhancement Kit Fits most digital cameras with built-in flash, hot-shoe, or PC synchro contact Can be used with conventional cameras at flash synchro speeds up to 1/250 second Wireless slave mode Ultra-responsive slave for fast recycling and extended battery life Uses 2 AA alkaline batteries and includes base stand, flexible mini-tripod, 2 AA alkaline batteries and Standard Sync cord