RC Helicopter Specifications: Frequency: 2.4g Channel: 4CH Length: 260mm Height: 80mm Flight distance: 100m Flight time: approximately 8 minutes Charging time: about 60 minutes Battery transmitter: 6 x AA battery (not included) Helicopter battery: rechargeable 3.7 V 150 mAh (included) Improved hood, main shaft, landing slider, tail boom