Intelligent Obstacle Avoidance: Obstacle-free flight, sensing obstacles ahead, steering to avoid obstacles, avoiding collision with airflow, setting altitude, stable hovering, simple operation, easy and stable flight, easy start for beginners One Key Takeoff/Landing: Just press one key to start flying, this mini helicopter will take off and hover at a certain height, which makes it easier for beginners and children to control the helicopter Auto-Hover Function: Updated with an altitude hold function, this helicopter can be locked at a certain altitude when your hands are off the controller More Joyful Flying: This helicopter toy has two-speed modes for pilots of different skill levels. Plus 2.4Ghz remote control system supports multiple players to control this mini helicopter at the same time. An ideal toy gift for kids and friends Specifications: Material: plastic/metal/electronic components Frequency: 2.4G Channel: 2.5CH, 3.5CH Altitude Hold Applicable age: 7 years old and above Body battery: 3.7V 200mAh Charging time: 45 minutes Flight time: 7 minutes (single battery) Remote control distance:about 10m Charging method: USB charging cable Remote control battery: 2 x AA batteries (not included)