The new 3-Channel RC Alloy Shark RC Helicopter is powered by a 3.7V Li-Poly rechargeable battery. Its metal frame makes it one of the most durable helicopters in its class. It flies approx 10 minutes. The RC Alloy Shark is 14.8 inches long and 13.4 inches wide, including blade span. This helicopter comes Ready-to-Fly right out of the box, all you need is 4 AA batteries.