Portable DesignThis fan is in the shape of a watch , which can be worn directly on the hand. Portable and compact, its perfect to use when take walking, travelling, camping,picnic, hiking and other and outdoor activities 3 Speed AdjustableThis usb fan has 3 adjustable speeds, including low, medium and high speed level, you could choose the breeze you need,just need press the power button to change the wind setting. Lock design , press up to work upright Battery OperatedBuilt-in rechargeable battery, you can enjoy cool outdoors without power. Compatible with any USB port like computer, power bank, wall outlet, car charger Cute USB FanFits to the wrist design, comfortable to wear. Cute shape and mini size, suitable for children, boys and girls as a cool gift in summer Specification Product Name: Mini USB Fan Charging method: USB charging Battery voltage: 3.7V 800mAh Material: ABS + PP Input voltage: DC5V Output power: 5W