Features: 1.3-speed wind speed adjustment: The waist fan has three-speed wind speed adjustment, which can switch between soft and strong winds at will, bringing nature home. 2. Mobile phone charging function: The neck hanging fan has a built-in 12000MAH lithium battery, and the fan can be used to charge the mobile phone in an emergency. 3. Silent motor: The electric fan has low noise and strong wind, which will not disturb you and your family, and will not affect study, work, sleep, etc. 4. Waist-hanging design: The small air conditioner has double clips inside and outside, which are tailored for the waist. The fan can be hung around the waist to free your hands. 5. Cool color matching: The fan adopts natural and cool color matching, and you will feel cool when you see the fan in the hot summer. Battery voltage: 3.7V Input voltage and current: 3.7V/1.2A Battery capacity: polymer 12000mAh Charging time: about 6 hours for full charge Fan working time: 1st gear 30H/2nd gear 14H/3rd gear 8H Charger specification: 5V/2A Fan working current: 1st gear 0.33A/2nd gear 0.71A/3rd gear 1.25A Working power: 1st gear 1.1W/2nd gear 2.2W/3rd gear 3.7W Working voltage: 1st gear 5V/2nd gear 7V/3rd gear 9V Product function: hanging neck waist desktop, LCD display, up to 30 hours of battery life, mobile power supply Color: Space gray Material: ABS+PC+electronic components Different factory batches may have slight differences in appearance and color, which will not affect the use Package Contents: 1 x fan 1 x data cable 1 x hanging rope 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.