Battery Operated Fan, Oscillating USB Fan with 4000mAH Rechargeable Battery, Mini Portable Fan for Stroller, Car, Gym, Office, Outdoor, Travel, Camping

General description Battery Operated Fan is a versatile and portable oscillating fan designed for various settings including strollers, cars, gyms, offices, and outdoor activities. With a built-in 4000 mAh rechargeable battery, it offers the convenience of both battery and USB power options, making it ideal for indoor and outdoor use. Technical specifications Battery capacity: 4000 mAh Charging time: 4 hours with 5V/2A input Operating time: 4.5-40 hours depending on speed setting Dimensions: 21 cm x 15 cm Usage Three speed settings: Low, natural, and powerful Adjustable fan speed for personalized comfort Aromatherapy function: Add essential oils for a refreshing scent Other information 360° vertical and horizontal manual rotation for adjustable wind direction 80° automatic oscillation for wide coverage Compatible with USB charging adapters, power sources, laptops, etc.