This is the electric powered, radio controlled Thunder Tiger Mini Titan E325 V2 450 size Flybarless Helicopter Kit. This is the kit version that must be assembled.FEATURES: Rotor Head: Flybarless design with preassembled two-piece main grips Control System: 120° CCPM Main Frame: Rigid carbon construction Landing Gear: One-piece molded skids Main Blades: V2 carbon fiber Tail Blades: V2 carbon fiber Canopy: Prepainted narrow fiberglass Tail Drive System: Torque tube for crisp tail response and 100% power transfer Tail Case: Lightweight CNC machined aluminumINCLUDES: Helicopter Kit with Main and Tail Blades, Decals and InstructionsREQUIRES: Radio: 6-channel heli radio Servos: Four Motor: Thunder Tiger OBL-29/37-10H 3700kV brushless outrunner (TTRG2001) ESC: Thunder Tiger BLC-40 40A (TTRM2003) Gyro: 3 axis Battery: 3S LiPo 11.1V, at least 2000mAh Battery Charger: To match selected battery Building and field equipmentSPECS: Fuselage Length: 25.2" (640mm) Width: 4.7" (120mm) Height: 8.2" (208mm) Weight: 22oz (624g) Main Rotor Blade Length: 12.8" (325mm) Main Rotor Diameter: 29.3" (745mm) Tail Rotor Diameter: 6" (152mm) jxs 04/18/12