The stability is strong, the best choice for gifts, is a remote helicopter alloy gift box! Product Name: 3.5 channel with a gyroscope remote control helicopter Packing: Alloy gift box Wind proof rating: indoor / outdoor flight Product size: 42X7.5X18CM Battery information: 3.7 V with protective plate 1000 Ma lithium battery Charger: electronic charger Charge time: 120-150 minutes Flight time: 7-10 minutes Remote control distance (radius): 20-30 M