Hand Fan Desk Fan Neck Fan 3 in 1 DesignL84mm*W41mm*H178mm size makes it very compact, you can carry it, which is really space-saving. This small fan can be conveniently hand-held, folded 180 to be placed on your desk, or simply hung around your neck (the cord is included). Rechargeable 4000- mAh Battery & Intelligent LED Digital DisplayZEEFO Mini USB Fan with built-in 4000mAh battery and real-time energy percentage digital display, which can really save you energy and keep everything under control. 4 Wind Speed Modes for Your ChoiceDon't underestimate this small mini fan as it has powerful performance. You can press the power button repeatedly to adjust the 4-speed wind speed (low / medium / high / strong wind). Don't worry about easy sweating in hot summer weather. Convenient USB Charging 25dB Quiet Operation This fan has a USB charging port, which can charge USB chargers, laptops, computers, mobile devices and other devices can be charged. The brushless motor design of the personal fan makes it very quiet during use, and will not affect your sleep or other people around. Perfect Gift Quality Assurance The ZEEFO portable mini fan is exquisite and durable. It is a must-have in summer and is very suitable for outdoor or indoor use. It is a perfect gift for friends and relatives in summer. If you have any questions, please write an email. ZEEFO offers 180-day replacement and long-term warranty. Why choose handheld fans? The built-in 4000mAh rechargeable batteries with dual power sources ensure 4 battery life depending on the speed setting up to 15 hours. This small fan can be comfortably held in the hand, folded 180 and placed on the desk or hung around the neck. High performance with 4 ultra-quiet Speed settings that provide powerful airflow with the lowest decibel noise. The sturdy handle allows for comfortable one-handed operation, while the lightweight design lets you take it anywhere. Multiple functions for home use , office and even outdoor camping. Compatible with all USB devices Brushless powerful motor Efficient power and conversion circuits can minimize loss to save energy and protect the environment. The decibel is kept between 20 and 30 dB. Learning, reading, outdoor work, working and even sleeping are very quiet. Low noise and strong airflow, enjoy the calm summer breeze! Compatible with all USB output devices The mini handheld fan portable package includes a USB charging cable and can be powered by USB chargers, laptops, computers, mobile devices and other devices that support USB. Portable handheld fan You can easily take it with you when you go on picnic, shopping, travel, camping etc. It is small and easily fits in your pocket, backpack or beach bag.