Specification: Brand: JJRC Model: JJRC-U9901-YW Product Color: Green, Gray Product Material: Plastic, Electronics, Hardware Remote Control Mode: 2.4G 6CH Remote Control Battery: 4 x 1.5V AA (not included) Remote Control Range: Approx. 100 meters Battery: 7.4V 300mAh Polymer Lithium Battery Charging: USB Charging Time: 80 minutes Usage Time: Approx. 8 minutes Dimensions: 25cm x 18cm x 7.5cm Weight: 121g Package Dimensions: 34.5cm x 8.5cm x 25.5cm Feature: 1> 6-channel flybarless design with propellers designed based on aerodynamic principles provides powerful power and self-stabilization for ultra-stable flight; 2> Master remote controller for refined control and digital servos for increased durability; 3> Brushless direct-drive motor for enhanced power, responsiveness, and wind resistance; 4> Barometer altitude control and optical flow positioning for stable flight; 5> High-power modular battery with battery level indicator for easy installation, effective battery protection, and extended service life; 6> Ascents, descent, forward, backward, left and right flight, left and right rotation, and flight path; 7> One-touch takeoff, one-touch landing, and one-touch inverted flight; 8> 6G mode with a 6-axis gyroscope for stable flight, perfect for beginners; 9> Low-voltage alarm, stall protection, fail-safe protection, and high and low rudder adjustment; 10> Includes a dedicated USB charger for fast, safe, and stable charging. Package included: 1 x RC Helicopter 1 x Remote Controller 7.4V Battery(1, 2 or 3 Optional) 2 x Main Rotors 1 x Tail Rotor 1 x Charging Cable 1 x Screwdriver 1 x Instruction Manual