3 wind speed adjustable, easy to adjust the appropriate fan speed<br>4000mAh large capacity batteries provide a long working time<br>When using the fan, you don't have to worry about your hair getting caught on the fan blades<br>USB rechargeable neck fan, convenient to charge via computer, cell phone charger, power bank, laptops, etc.<br>Best partner for work, office, reading, sports, travel, hiking and cycling when in summer<br>Specifications:<br>Product model: F70<br>Product material: silicone+ABS+stainless steel<br>Net weight: 300g<br>Product size: 212 * 156 * 60mm<br>Input voltage: 5V<br>Input current: 1A<br>Rated power: 5W max<br>Plug interface: Type-C<br>Battery capacity: 4000mAh (actual 3600mAh)<br>Usage time: about 4-16 hours (depending on the gear)<br>Operating speed: 2350 rpm in first gear, 3000 rpm in second gear, and 3500 rpm in third gear<br>Noise: First gear: 28db, second gear: 35db, third gear: 42db<br>Package included:<br>1 x Neck Fan<br>1 x Charging Cable<br>1 x English and Chinese User Manual