Q1: Does this come with any warranty? A1: We offer one year free replacement for any non-human defective units. You can contact us for replacement. Q2: Dose it make a lot of noise? How quiet is it? A2: No, the motor of this fan uses an industrial grade brushless motor ,and the decibel stays between 40-50dB ,it's really very quiet for studying ,working and sleeping. Q3: How strong is the airflow? A3: The fan has three power settings, 2.6 watts, 3 watts and 4 watts. the air flow is surprisingly high to a range of around 1.5 meter. Q4: Can it be charged? A4: The built-in 2000 mAh battery can be used for 3-8 hours after a full charge. USB cable is included so you could use a back up power pack / battery to power it Q5: How long is the usb lead? A5: 2.3 feet long, which can make you position the mini fan on bedside or desktop freely. SPECIFICATIONS: Material: ABS+PP Fan diameter: 6.7inch Fan height:14.17inch Output power:4.5W Working current: 0.8A Input voltage: 5V Speed mode: 3 speeds mode USB cable length:27.56inch / 70cm PACKAGE LIST: 1 x Desk Fan (usb cable include) 1 x User Manual

?Small and portable? 6 inch small fan, Its compact size and lightweight design make it extremely portable, it is easy to pack into a bag or luggage, making it ideal for traveling, camping, or simply using in the office or at home. ?High USB Compatibility?- The mini fan has excellent USB compatibility and can be compatible with all USB ports such as laptops, power banks, car USBs, USB sockets, USB adapters, etc. So you don't have to worry about power adapter problems when you go out!. ?Ultra-quiet? The fan is equipped with 3 blades and a brushless motor, the noise of the USB fan is less than 40dB, let you feel comfortable and cool anytime but won't bother you when sleeping, studying or working. which is ultra-quiet and strong and consumes electricity is low!. ?Battery powered and safe and durable?Built-in 2000mAh rechargeable polymer battery, which can be used continuously for more than 3-8 hours of working time (depending on the speed) when fully charged. The desk fan can be charged through various USB-supporting devices, with built-in smart The chip can provide charge and discharge protection, high temperature protection, etc., while ensuring operation, it can also prevent safety problems such as short circuit. ?180° Free Rotation?The head of the fan can be rotated 180° rotatable, and it is a telescopic rod design, you can adjust the height at will, which is a considerate design for much wider blowing range to help you enjoy the cool wind anywhere at home,office, near desk table sofa bed.