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Amazon.com: PHOLSY External Hot-Shoe Flash Battery Pack Speedlite Battery Box Compatible with Canon 600EX II-RT, 600EX-RT, 600EX, 580EXII, 580EX, 550EX. Replaces CP-E4N, CP-E4 (12 AA Batteries) : Electronics
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Neewer Battery Powered (700 Full Power Flashes) Outdoor Studio Flash Strobe with 2.4G System(Trigger Included), German Engineered, 3.96 pounds, Vision 4 for Location Shooting, 2 Packs Li-ion Battery : Amazon.in: Electronics
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