Features: 1) Four channels 2) Dexterous body, higher spiritualism 3) Special formation, strong material, strong anti-breaking 4) Super performance, simulating flying attitudes of model helicopter: flying up and down, hovering, rotating, yawing, moving forward and backward 5) Jarless function 6) Control range: 100m 7) Fly time: 12 minutes 8) Offer more pictures 9) Fit for flying outdoor and indoor Specifications: 1) Main rotor span: 51cm 2) Tail rotor span: 14.5cm 3) Length: 46.9cm 4) Weight: 185g (no battery) Packing included: 1) Dragonfly 4-channel micro helicopter 2) Ni-MH 8.4V 650mAh and charger (110V and 220V optional), all kinds of chargers such as UK 3-pin, Euro 2-pin available 3) 2 installed mini control servos 4) Mixer and speed controller 5) Gyro 6) Transmitter and receiver: specify 35, 40, or 72mHz, also specify mode 1 or mode 2 (mode 2 has throttle on left hand side, mode 1 has throttle on right hand side) 7) English manual 8) Simulator cable and software