Low noise design: - The portable personal fan motor has been modified so that it will produce lower noise during operation, making the neck fan more durable and quieter. You can have a quiet environment, even if you wear a neck fan Application: - The portable neck fan can really free your hands and enjoy the cool breeze anytime, anywhere. Best friend for work, office, reading, sports, travel, hiking, cycling, etc. It is also a good choice as gifts for family and friends Neck fan: - The personal neck fan with adjustable lanyard, can hang on the neck, hands free and easy to adjust the length. The mini fan designed with bracket, so can put on the table top, also conveniently hang on the waist if needed USB Rechargeable & 3 Speed Wind: - USB rechargeable neck fan, convenient to charge via computer, mobile phone charger, power bank, laptops, etc. Built-in 2000 mAh battery, provides 3 to 7 hours duration (depends on different speeds). 3 wind speeds can be adjusted when you meet all the needs of you [Sale Guarantee] - If you have any questions about the product, please contact us, our professional customer service team will solve the problem for you as soon as possible.