Fan blade material: no leaf Motor type: brushless motor Shell process: ABS Noise: below 36dB (inclusive) With a built-in battery or not: Built-in battery Power type: USB With USB or not: Yes Fan Speed Mode: 3 gear Battery life: 1-3h (included) Fan Category: USB fan Operation mode: normal button Shaking head function: manual fine tuning from up and down angles Input voltage: DC 5V/1A Product gear: 3-speed wind speed adjustment Battery capacity: 1800mAh
