2. Mobile phone charger function: built-in 4500mAh lithium battery, 5A/1V output, you can use a fan to charge your mobile phone in an emergency. 1. Three-speed wind speed adjustment: Three-speed wind speed adjustment, soft and strong can be switched at , bringing nature home. 4. Mini and , tailored for the waist inside the clip position, three adjustable wind, does not leak hanging waist design - release hands, walk with a refreshing 3. Quiet motor: The fan has low noise and strong wind, does not disturb you and your family, and does not affect study, work, sleep, etc. 5. Load reducing structure design, easy to master with one hand, hanging waist no pressure anytime and anywhere to drive away the heat, enjoy cool