This is the electric powered, ready to fly, Estes R73-OPS Attack Cobra Mini Helicopter. For indoor flight only, by pilots at least 14 years of age. **Additional Technical Info Will Be Added When It Becomes Available.** FEATURES: Counter rotating rotor blades for stable flight and easy maneuvering ideal for beginners LED searchlights and factory appled military decals 3.7V 1S LiPo battery charges through controller 3.5 channel infrared controller with built-in charger and trim dial to adjust flight orientation INCLUDES: Estes R73-OPS Attack Cobra Mini Helicopter with 3.7V LiPo Battery, Controller, four spare Main Blades and one spare Tail Blade REQUIRES: AA Cells: Six for controller SPECS: Length: 8.6" (218mm) Width: 2.8" (71mm) Height: 3.7" (94mm) jxs 12/22/11 ir/jxs