... ,right,forward,backward Very strong,not easily broken RC New style 3.5 channel rc helicopter Function:Ascend,descend,left,right,forward,backwardVery ... time:7min.Flight Area:12m.Power battey:3.7V/200mAh Li-polymer battery.Model of electric engine:7Color box size:64.5 ... the non-toxic one and products always come out with high quality.3> A trial order or sample orders are welcomed.4 ...