1. Unit weight: about 225 grams 2. Dimensions: 109 × 80 × 49 mm, USB cable 30 cm long 3. Material: TPU, PC 4. Specifications: battery capacity 4000mAH (3.7V / 14.8WH), working hours 16 hours low gear, mid-range 5 hours, large gear 3.5 hours, charging time about 3-4 hours, low speed 4500 rpm, mid-range 6000 rpm 7000 rpm 5. Applicable occasions: home, office, study, work, travel, etc 6. Features: unique shape, beautiful and practical, light and portable, can be hung on the neck and waist, adjustable three-speed wind speed, adjustable left and right 30 degrees wind direction, can be used as emergency mobile power, shock absorption
