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CP-E4 External Flash Battery Pack for Canon 600EX 580EXII 580EX 550EX MR-14EX MT-24EX
Product Description :
Provides increased external power to your canon flashes
Reduces flash recycling time and increases the total number of flashes
Very suitable for using in continuous flash
Powered by 8xAA batteries not included
14 thread screw standard thread for tripod mount
