【Multi Power Supplied & 4.5H-40H Working Time 】Power supplied by 4400mah(2*18650 ) rechargeable batteries and USB interface of computers, laptop, power banks, USB chargers,AC adapter and so on. It can work up to 40 hours on minimum wind（1500rpm), 4.5 hours on maximum wind(3800rpm) after fully charge .Built-in noise reduction motor provides strong wind quietly for a long time.

【Four Speed & Low decibel】With on/off rotary button,which is featured in stepless control, you can adjust it to the most comfortable wind speed. The running sound could be less than 20db when it working at minimum speed, it is quieter than that flipping a book. the maximum working decibel is just 40db, which will not disturb your sleep, work and study.

【360° Horizontal/Vertical Rotation & Power Bank Function 】This mini desk fan supports 360° manual vertical flip to keep you enjoy the cool wind at every angle. And it can be used as a portable power bank to power mobile phones, MP3 players, iPods and other devices.

【Sponge Hole Design & Safe Narrow Gap】With the sponge tank(2 sponges in the package) at the backside of table fan, can drop ice water or aroma essential oil/repellent liquid on the sponge to relieve the tired for yourself.Mosquito repellent can help your baby away from mosquito bites Curvilinear form narrow gap design protects the baby's fingers from injury. Humanized design can set mom's mind at rest.

【2 in 1 Clip and Desk Fan & 2 Year Warranty】This versatile USB Fan integrates the desk top and clip designs, suitable for various places,great for office desk, baby stroller, car backseat, bicycle, camping tent, home, kitchen, dormitory, library, gym exercising, outdoors/indoors activities, also an idea gift for friends, colleague and family trip. We offer a 24-month warranty effective from the date of purchase.