Fan blade material: no leaf Additional functions: Semiconductor refrigeration, ice cooling, three-gear wind cooling Product material: ABS aluminum alloy electronic original semiconductor Motor type: brushless motor Shell Technology: spraying (UV paint, rubber paint, metallic paint, piano paint, pearl powder) Noise: below 36dB (inclusive) With a built-in battery or not: Built-in battery Built-in battery capacity: 1000mAh-1200mAh (included) Battery life: 3-6h (included) Operation mode: normal button Power type: USB Fan Speed Mode: 3 gear Fan classification: Handheld fan
