Drone with four way obstacle avoidance function. Frequency: 2.4G, Channel: 4ch, Gyro: 6 AXIS. Quadcopter battery: 3.7V 350mAh lithium battery. Transmitter battery: 3 x 1.5 AA battery. Charging time: about 45mins, Flight time: 7 minutes, Remote control distance: about 50m. Package Included: 1 x RC quadcopter, 1 x Remote control, 1 x Lithium battery, 1 x USB charging cable, 4 x spare blades, 1 x screwdriver, 1 x user manual.