Align's smallest 3D helicopter the T-Rex 150X, carries the same superior pedigree and design concept that originated from the successful T-Rex line of helicopters. Featuring strong power, superior flight control stability, and equipped with high end components, far exceeding any other helicopters currently on the market. Integrate 6-aix gyro, receiver, ESC and Bluetooth controlling system. Set up and update the flight parameter settings via APP Interface. Support for mobile devices, iOS & Android allows easy set up and adjustment to flight parameter settings. The APP makes firmware updates easier to install. Download the FREE APP to get the latest firmware update with additional improved functions. Main motor KV value is increased to 9000KV to deliver outstanding power, torque, and high efficiency with low power consumption delivering outstanding performance. The tail motor provides superior tail authority out performing all other micro heli's on the market. T-Rex 150X features built in Futaba S-FHSS 2.4Ghz system, and support the use of Spektrum DSM2/DSMX / JR DSM2/DMSS satellite receivers. Miniature size, control precision that resembles the larger helicopters, enables you to enjoy flying inside a confined space. Beginners can even enjoy this with ease by just turning down the speed dial. The innovative breakthrough T-Rex 150X will bring you a new dimension of flying enjoyment.