1. Portable small fan: The fan can be hung around your neck. It frees your hands and you no longer need to hold it. Moreover, you can carry the fan with you. 2. Three adjustable speeds: The mini - fan has three speeds (low/medium/high). You can choose the speed you need and always feel comfortable. 3. Multifunctional fan: This fan is suitable for many activities such as outdoor sports, shopping, camping, picnicking, mountain climbing, traveling, etc. 4. No noise, more convenient: The portable fan uses advanced technology and makes no noise. It will bring you more convenience in summer. 5. USB rechargeable battery: It has a built - in 1200 mAh battery, ensuring high safety. The mini - fan can be used continuously for 4 - 12 hours after being fully charged. 6. Product description: - Color name: Black - On hot summer days, whether you are exercising, outdoors or in the office, bring a portable mini - fan and enjoy quiet coolness! With the hanging fan, you will feel free, quiet and comfortable. 7. Specifications: - Product size: 26 x 18 x 3 cm. - Weight: 180 grams. - Battery model: Li - ion 18650 - 3.7V 1200mA. - Charging method: 5V / 1A micro USB cable. - Charging time: 1 - 2 hours at DC 5V / 1A. - Usage time: 4 - 10 hours (10 hours at low speed, 7 hours at medium speed, 4 hours at high speed). - Power consumption: 0.3 W - 1.2 W. - Speed: Low/Medium/High. - Material: ABS + silicone. - Color: Black. 8. Tips: - Before using the fan for the first time, please charge it first. - It's better to tie up your hair before using the mini - fan. - When the fan fails to reach the third - gear speed or cannot be turned off, please charge it. 9. What you will receive: One USB fan and one USB cable.