Altitude Hover - The lightweight myFirst Drone features an underside sensor, detecting height during flight to ensure Drone stays in motion or hovered under 3 meters. If the myFirst Drone does go higher it will automatically lower itself. Obstacle Avoidance - Sensor-based flight patterns avoids opposing objects i.e. walls, trees or furniture. Safe to play both indoors and outdoors with anti-crash sensors built into the front and rear of myFirst Drone. Controller Free - Use your hands and the built-in sensors to move and control the myFirst Drone, you don't need a controller to make it move. myFirst Drone acts on sensor-based flight patterns to detect opposing objects and changes course if it detects an object. Caged Protection - The propellers are enclosed to ensure zero accidents or injuries. Safe to play both indoors and outdoors, the outer cage also has bounce technology to ensure it won't damage any furnishings or break on impact. myFirst Drone is made from child safe materials, ensuring safety during playtime. Rechargeable - No batteries required with the myFirst Done. A USB charging cable is included with purchase, all you need to do is charge it up and play. Once the battery goes flat, plug it back in and when it is fully charge you can continue the fun.