The Blade® 500 3D RTF is designed to give intermediate-to-experienced pilots the most powerful, ready-to-fly Blade experience available. It comes out of the box assembled and equipped for aggressive 3D with an E-flite® 520H, 1320Kv brushless motor and a high-output 6S 30C Li-Po battery. This awesome power is complemented by the kind of state-of-the-art electronics and engineering you would expect to find in more expensive kits that take hours to build. You simply charge the battery, install the main rotor blades and fly.