[Brushless Motor - Super Power] The combination of 3-phase brushless motor and 4000mAh battery greatly increases wind speed, power and range. Maximum wind speed is up to 10m/s. The maximum speed of the handheld fan is three times higher than a normal personal fan, up to 20000 rpm. A single charge lasts for 3-15 hours of continuous cooling. [Digital Display - Anti-touch Function] The fan is equipped with a high-definition digital display, which shows the current wind speed gear and remaining power, as well as an anti-touch locking button, which can be locked with one key for peace of mind. When this mini fan is low on power, you can schedule a charge in advance to a cool companion for every trip. ⚡[Multiple Charging Methods - Fast Charging] This USB rechargeable fan supports a 5V-2A fast charging plug and can be fully in just 2.5-3 hours, providing up to 10 hours of when fully . The package of this battery-powered fan also includes the USB connection cable (1.8 feet), which allows you to charge it using a regular USB socket, a laptop, a mobile power supply, or a car charger. [ Appearance - Portable and Loss Prevention] The ultra-small foldable body design and ultra-light weight of 0.6 lbs allows you to easily slip it into your pocket or bag, say goodbye to bulky and heavy traditional fans, and easily dissipate heat on the move. The mini fan also comes with two types of anti-lost lanyards, no matter where you go, this handheld portable mini fan make sure you stay comfortable and cool all day long! Color: Black Material: ABS+PP Package Contents: 1 * Handheld Mini Fan Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.