Product function: Fan mode: linear speed regulation, drone mode: forward and backward, up and down, left and right, gravity sensor remote control, four directions roll mode, light switch control, charging treasure. More details: * Use battery: 3.7v * Remote control distance: about 80 meters * Flight time: 5 minutes, fan mode about 6 hours * Remote battery: 2000mAh 18650 battery * Charging time: about 1.5 hours, drone charging for about 20 minutes. Complies with Prop 65. 3.66" L x 3.66" W