The Blade Nano S3 Ready-to-Fly Basic Electric Flybarless Helicopter with AS3X and SAFE technology builds on the widely popular Nano S and offers technology improvements including built-in voltage telemetry right to your compatible Spektrum transmitter. 3D aerobatic expertise is easier than ever with updated features that make mastering difficult maneuvers such as flips and inverted flight easier to learn for all skill levels. A updated flight controller comes totally re-tuned from the ground up improving AS3X stability, an improved SAFE mode with angle demand, and an improved panic recovery. On top of that, the SAFE Z altitude control utilizes the on-board accelerometer to keep the heli at a consistent altitude. With its vertically mounted flight controller, it significantly improves damping and removes vibration to the gyro. Linear servos deliver the muscle for impressive control authority while the 45C LiPo flight battery produces efficient power for 3D flight. Construction with super-resilient polymers along with a carbon-fiber main shaft and tail boom give the model's lightweight airframe amazing durability. Most impacts that occur while practicing 3D maneuvers cause no harm. If you do happen to need a repair, nearly all the parts from the Nano S2 are compatible with the updated Nano S. Features: Integrated Telemetry Durable design Powerful coreless motors allow for advanced 3D maneuvers. Light Weight - Low disc loading for advanced aerobatics. Linear Servos Provide faster response and better holding torque over normal rotary servos. Specifications: Approximate Assembly Time: Less than one hour Approximate Flight Time: 7 minutes Battery: Included Canopy/Body Material: Plastic Channels: 6 Charger: Sold Separately Completion Level: Ready-To-Fly Power Type: Electric Main Blade Material: Plastic Main Frame Material: Plastic Main Motor Type: Brushless Main Rotor Blade Length: 9.25" (235 mm) Main Rotor Diameter: 21.1" (536 mm) Main Rotor Head Type: Collective Pitch Flybarless Pinion: 12T Product Height: 6.46" (164 mm) Product Length: 8.66" (220 mm) Product Weight: 11.96oz (339g) Product Width: 3.54" (90 mm) Receiver: Included Skill Level: Level 2 Speed Control: Included Swashplate Type: 120 Degree CCPM Tail Blade Material: Plastic Tail Drive: Direct Drive Tail Motor Type: Brushless Tail Rotor Diameter: 3.25" (83 mm) Technology: SAFE Includes: (1) Fully Assembled Nano S3 Micro Helicopter (1) Spektrum™ 2.4GHz DSMX® receiver (installed) (1) Spektrum™ MLP6 6-channel 2.4GHz DSMX® Transmitter (1) 45C LiPo Battery (1) USB LiPo Battery Charger (4) AA Transmitter Batteries (1) Product Manual Tools and Extras Needed to Complete: Nothing! The The Blade® Nano S3 Ready-to-Fly comes with everything you need to have fun right out of the box.