Features:Remote Control、Shatter ResistantType:HelicopterState of Assembly:Ready-to-GoAction Time:8-10 MinutesBrand Name:XinxunWarning:read this operating manual and practice more before flightAge Range:8-11 Years、12-15 Years、Grownups、> 8 years old、> 14 years old、> 6 years oldRemote Control:YesMotor:Brush MotorController Mode:MODE2Dimensions:16*16*4cmController Battery:AA battery not includedRemote Distance:30mCharging Time:40 MinutersMaterial:Metal、PlasticPower Source:ElectricCharging Voltage:3.7V 380mAhControl Channels:4 ChannelsModel Number:x40v