1, 3 Adjustable fan speed: This fan can be switched between min/medium/max speed to meet your needs in different situations. You can also choose a fourth mode if you need to automatically switch between the 3 wind speeds2, 3 modes of use: 3 modes of use: Not only can the fan be fixed, but also the fan can be placed on the base as a desk fan. The base can hold a mobile phone and watch TV while watching the wind. There is a small hole at the bottom of the fan, you can string the fan on the rope, which is convenient for going out3. 2500mAh rechargeable battery: It can keep power for 12 hours at the lowest speed to ensure cooling when you are out and about. Even if the battery is dead, it is widely used in daily life, don't worry that the charging head is not suitable for using a fan4. Small and portable: 8.27x4.13x1.57in, when not in use, you can put the fan in the bag, it does not take up space, it is very light, there is basically no heavy load, and you can carry it with you anytime, anywhere5. After-sale service: If you have any questions, please contact us, we will reply you within 24 hours after receiving the email