Specification:Name: Portable Bladeless Fan Input voltage: DC 5VWorking voltage: DC 3.7VBattery: 2000 mAhCharging time: 4 hoursBattery life: 6 hoursColor: blue, pinkInput/output: 1.5AMotor speed: 25,000 RPMMaterial: ABS. Usage:1. Power and wind speed adjustment buttons, 1-2-3-off2. Standard 5PIN charging jack, USB charging connector, household charger, car charger and mobile power supply can all be chargedInternal transverse high-speed rotating structure, so in the maximum wind will produce vibration or rotation. Charging method: Closed micro 5PIN USB charging cable or household 5PIN charger can be used for charging. Input: 5V 1a-21a, charging time about 4 hours. Cleaning method:No need to clean the dead corner of fan blade, just wash with water. Features:- 360 ° air inflow and discharge from the upper air supply outlets, at the same time from the circular rear intake air, increase air flow.- Because of the special structure of no - blade fan, the sound resonates. No fan blade fan, from the bottom to the air intake, and then out of the upward, to maintain a stable wind direction.- This is a fan with no fan blade, less noise, uninterrupted stream of smooth air with no unpleasant buffeting.- It works very differently from conventional fans, feel the cool wind and enjoy a healthy life.- No fast-spinning blades and safe for children and pets.- Concise design, the appearance is more beautiful and generous.- This is a mini bladeless fan made with ABS material, easy to clean, durable in use, and with 3 speeds for meeting your needs. Package included:1 x Portable Bladeless Fan 1 x Charging line