MULTI-BATTERY, MULTI-LED, HANDS-FREE FLASHLIGHTThe Sidewinder Compact II accepts multiple power sources: one CR123A lithium battery, one AA lithium battery or one AA alkaline battery to provide ultimate flexibility in the field.The same great features as the original Sidewinder Compact®: lightweight, multi-directional and multi-functional. The difference? It accepts a variety of different battery types to ensure you always have a power source wherever and whenever duty calls.