radio remote control helicopter toy 1 ,Newest design 2 ,4-channel with Gyro , 3 ,Co-Axis:4blades 4, long distance control 4 channel:Asending/Descending forward/backward turn left &right move left &rightproduct size123x4.5x12.5cmcarton size49*29*52.5cm(12pcs/ctn)main motor coreless motorbattery 3.7/v210mah Li-polycontrol distance 10 metescharger time 50minsAvitation time 7mins