USB fan is a small and portable device that's handy for personal, close-proximity cooling. It's powered through a USB connection, such as the one in your computer, a power adapter that you plug into a wall outlet, or a portable power bank. Despite their compact size, the USB fans can be powerful, and offer different speed settings. They won't cool down an entire room, but they can keep you comfortable when used at a close distance, such as an office desk or bedside table. Product material: ABS+ electronic components Product Weight: 0.15 Product size:12.6*8*7.3cm Color style: yellow + fense + white + gray Product packaging: box + fan + charging cable + instruction manual Working power: ≤2W Noise: 20dB or less Battery capacity: 250 mAh Motor type: Brush motor Package included: 1*MINI windmill desktop fan 【Compact USB Fan】 This is a compact mini size desk fan, it can get accessed to USB interface like adapter, USB hub, power bank, PC/laptop. 【Super Quiet】 Even running in the strongest mode, the noise of the USB fan is still less than 20dB, let you feel comfortable and cool anytime but won't bother you when sleeping, studying or working. 【Handheld/Desktop Fan】This mini portable fan can be used as a handheld fan when outdoor and used as a mini desktop fan on a flat table when in the office. There is an anti-slip mat at the bottom of the base to keep it stable when placed on the table. 【Easy Cleaning & Mini Size】Featured with a detachable cover, this mini portable fan is easy to clean easily by counterclockwise to separate the cover and the fan. Besides, It is small in size for convenient carrying in your bag. Perfect for commute/travel/shopping/picnic/office. It would be one of your bag essentials in summer. The angle of the outlet can be adjusted, and the comfortable angle of 90 degrees can be adjusted.