Extends Portable Flash Battery Pack for you to flash in a much more effective way, greatly increases the number of flashes and reducing recycling time.And provide approximately 1 second full power recycle times, and around 680 1/1 power shots with full sized speedlights.
12 AA batteries ensure a more stable power supply for the flash, comparing with traditional battery pack
Compatible with: Canon 550EX/580EX/580EX II/600EX/600EX-RT/600EX II-RT.Yongnuo and Godox speedlite
Compact, portable, and easy to connect with speedlite, shoot faster, miss fewer shots and catch every wonderful moment
Package content: 1 X Flash Battery Pack, 1X Carrying Case (12 AA batteries not included)