Function Feature: There’s infrared induction around and at the bottom of the drone to have obstacle avoidance flight, you can use your hand in the air to control the steering of the drone;In case of sudden obstacles at the bottom, it will automatically rise, and when the obstacles at the bottom are evacuated, the drone will automatically fall below. Low power alarm: also can be used as an electric fan. Details: Color: yellow, blue Flying Time: about 5-6minutes Charging Time: 40 minutes Propeller Size: 37mm Packaging: Color Box Number of driving motors(pcs): 4 pieces Battery: 3.7V 220mAh with protective PCB Size: 106*106*46mm Charging Details: input voltage 5V, output current 500mA, USB Charger Battery with overcharge and overdischarge protection PCB Packaging Size?12.9*9.3*12.4 CM Package Contents: Operation Guide (1 set), propellers (1 set), USB Charger (1 pcs) (UDI-U58)