... Length:200mm(7.87in), Height 120mm Rotor Diam. 195mm. 2. 4 channel(forward, backward, up, down, left, ... . Ready to fly, Easy control, Easy to fly.2. 4 channel(forward, backward, up, down, left ... Conform to FCC, RT&TTE. NameSky Tango 2.4GHz 4CH Radio Control (RC) HelicoptersItem No.XA02082(A028 is ... code)Power 3.7V 130mAH Li-PoRatio2.4GHz(Frequency-hopping spread spectrum)MeasurementLength:200mm(7.87in ...