3.5 channel infrared remote control helicopter, flight stability, good quality, is the best toy partner of young people name: 3.5 channel infrared remote control helicopter Packing: Alloy gift box Wind proof rating: indoor / outdoor flight Product size: 24X4X11.5CM Battery information: 3.7 volts 180 Ma lithium battery Charging time: 30 minutes Flight time: 7-10 minutes Remote control distance (radius): 10-15 M