1). Quarto motors drive make unimaginable stable flight and bring you more fun.
2). Modularized design features convenient maintenance at low cost.
3). Main rotor blades are specially protected by arc-like carbon fiber which effectively prohibits blades.
4). Integrated design of 3D gyro and attitude control provides precise locating in air.
5). Flight time will be up to 9 to 11 minutes on a 3.7V 400mAh LiPo.