Built-in high-precision 6-axis gyroscope. 3 Speeds: low medium high. 2.4GHz remote control. Calibration trim control. Control distance: up to 656 feet (200 M). 3-Channel control. Calibration trim control. Emergency stop. Motor crash protection circuit. DC battery power: removable rechargeable. Operating time: up to 10 minutes. Remote requires 4 AA batteries (NOT included). Recommended ages 14+ years. 30-Day manufacturer limited warranty. Includes: Remote control. USB cable. 4 Landing gear wheels. 4 Replacement rotors. 6 Screws. Screwdriver.