- Material: ABS+aluminum alloy+electronic components-2. Size: 55 * 51 * 200mm; Weight: 143g-3. Battery capacity: 1200mAh; Charging time: 2 hours-4. Battery life: 1.25-4.5 hours-5. 3-speed airflow adjustment; airflow noise: 45db-6. Foldable at 90 degrees; Equipped with lanyard, desktop, neck hanging, handheld, suitable for multiple scenarios