Carton size:65*54*55cm QTY:6PCS/CTN QTY:12/14KG Specification: 1. Type: RTF Electric 3D Heli 2. Transmitter:6CH RTF/ARF RC Helicopter 3. Length: 420mm 4. Height: 161mm 5. Main Rotor Diameter: 438mm 6. Tail Rotor Dianeter: 105mm 7. Gyro: GY192 Head Lock Gyro 8. Battery: 7.4V 850MAH 15C li-polymer 9. Motor: Brushless 4800KV 10. Servo: 7g*4pcs 11.ESC: 15A Features: 1.Simplify, compact and high-rigidity frame. let all electric system install easy and nice looking. 2.Use Direct-belt-drive, save power and let helicopter very quiet. 3.Simple, separate servos-frame, let flyer easy install and repair. 4.In main frame, use 3pcs belling, insure to the main shaft concentric and less shake. 5.High-precision tail double-push frame, more smooth and wearable. 6.The separate main gear let flyer install and repair more easy and fast.