Rose*7200 Four-speed folding and telescopic*1pcs, 19.7*19.7*9.3cm after folding and shrinking: 36cm standing 100cm[Precautions before use] Before using the portable fan, charging time should be less than 4 hours. The charger should use 5V/0.5A voltage, please use the fan according to this standard. If the customer fails to operate to this standard, the customer is responsible for the loss caused. Use 3-10 hoursFull charge can work for 2-10 hours. Can be recharged hundreds of times to ensure safe use. 3 Adjustable SpeedsMini USB Fan The fan has 3 airflow speed settings that can be adjusted according to your needs: low/medium/high. Press the power button repeatedly to adjust the fan speed to help you enjoy outdoor leisure. Compatible with any USB output device Folding hand fan handle with USB charging cable, can use 5V output adapter to charge, USB charger, laptop, computer, bank power supply and other equipment. other USB compatible devices. Foldable Portable FanGreat Gift: Perfect Mini Fan for Indoor - Office, Home, Dorm, Study, Library, Game Room or Outdoor Activities - Beach, Picnic, Sporting Event , camping, hiking, biking, hiking, biking, climbing. , boating, travel, etc. Portable Fan: Thanks to the foldable handle design, the fan can be easily picked up and carried on the go, perfect for travelling, walking, hiking, climbing, camping, exercise, etc. Desk Fan: Fold the handle and place the fan on flat surfaces such as desks, bedside tables and coffee tables for chatting, watching videos, sleeping, work or study in your free time at the office, library or in class.