Bolt Cyclone PP-310 Compact Power Pack for Portable Flashes Li-Ion Battery, 5-Pin Connector | 1 Sec. Recycle Time with Most Flashes | Up to 500 Full Power Flashes LED Charge Level Indicators | 100-240VAC Charger | Charges in 2 Hours Removable Belt Clip | Quick Release Shoulder Strap | Lightweight: 14.1 oz Whats In The Box: Quick Release Shoulder Strap, Removable Belt Clip, Limited 1-Year Warranty