Bolt Cyclone Battery Pack for Camera Flash (with Charger) Fast Recyle Time of 1 Second | Up to 400 Full Power Flashes For Shoe-Mounted Flash Units | Lightweight (18 oz, 502 g) Includes 100-240VAC Charger | Pack Charges in 2 Hours Works With Quantum & Lumedyne Cables Whats In The Box: AC Charger (B0-1003), Shoulder Strap, Belt Clip, 1-Year Warranty