• The DS76-series servos are specially designed to deliver maximum power and precision for extreme 3D heli flight
• The G210HL gyro uses the latest in MEMS technology to provide amazing holding power during the most aggressive 3D maneuvers
• The robust 35A speed controller is engineered to efficiently channel the high-current flow of most any high-C 3S Li-Po battery
• The compact 4.0-gram AR6115e receiver provides the superior response of Spektrum DSM® control as well as the benefit of ServoSync which dramatically enhances the precision of any CCPM heli
• The rotor head mechanics have been optimized to provide the most aggressive 3D control response possible
• Includes the Spektrum DX6i with two pre-programmed flight profiles — one for intermediate pilots and another for experienced 3D pilots

Nothing! Everything you need is included in the box.

The Blade 450 3D RTF blasts ready-to-fly 3D heli performance to new levels of precision and power. It comes completely assembled and equipped for aggressive 3D aerobatics with the kind of pro-class electronics and mechanics you would expect to find in more expensive kits that take hours to build. It’s even been flight tested and had the rotors balanced at the factory so you don’t have to do any setup. Simply charge its 3S 2200mAh 30C Li-Po battery and fly.