product features - wireless flash controller for the canon ex420 and ex550
- indoor transmission range of approximately 40 to 50 feet
- outdoor transmission range of approximately 26 to 33 feet
- 1,500-transmission battery life
- turns off after 90-second idle
technical details - battery requirements: one 2cr2 lithium battery
- batteries included: no
parallel imported
warranty: warranty one year
delivery within 2-4 business days
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