Product Name: KiCA JetFan mini Net Weight:  ~137g            Material: Aluminum AllOy/PC+ABS        Battery Capacity: 3000mAh              Longest Battery Life: ≈13h      Charging Time:  ≈2.2h(5V---2A,25C)            Rotational Speed: 40,00010%rpm           Operating Voltage : 3.4V~4.2V        Operating Temperature: 0℃ ~+40℃        Storage Temperature:    -20°C~+60°C Tip: The Jetfan mini has much less wind power than the Jetfan 2 and doesn't have a vacuuming function. FOCUSED AIRFLOW DESIGN, POWERFUL BREEZE Aero-grade turbine duct design, stronger focusedairflow, 3 Times more powerful than ordinary small fans. ULTRA-COMPACT AND PORTABLE Suitable for a variety of scenes