This HTB E99 Pro drone has a four-rotor fuselage made of high-strength and engineering-resistant ABS materials. With a 4-axis structure, the drone is even more flexible, speedy, and can fly indoors. It has a built-in 6-axis gyro stabilizer to ensure accurate positioning in flight. Three speed (low-speed/medium-speed/high-speed) is adjustable. Two cameras provide a wide range of 4K high-definition pictures and videos. You can also use wifi to connect with your mobile phone to control the drone, take pictures/videos, and transmit images in real time. Headless function makes the drone easy to directional control. With 2 Modular 3.7V 1800mAh Batteries, the drone can support up to 30 minutes flight time, which means Less charging but More flying! This mini drone also brings you many other features, such as altitude hold, 360° stunt flip, auto take-off/landing and one-key return. With foldable arms, it has a small size, and is easy to carry. The structure uses a modular design which makes it easy to install and repair. This drone is perfect for adults, kids, as well as beginners (Assistance from an experienced adult is recommended).