Description: Material: ABS Size: 15 * 15cm Spannung5V Rated power: 2.5W Noise: below 36dB Specifications: 1. Strong airflow: The USB desk fan is powerful and can provide strong airflow circulation 360 degrees in any desired direction. 2. A variety of power supply methods:Adapted to mobile power, standard adapters, sockets with USB, Notebooks, desktop computers and other products with USB. 3. Quiet operation: The mute small fan adopts a mute structure and is designed to be ultra-quiet while providing strong airflow. It's a good quiet friend when you're working and sleeping. Perfect for your desk, office or bedroom. 4. Portable size and wide application: The USB fan is mini size (size: 15*15cm). You can put it in your bag to carry with you, it is versatile and the perfect size for office, bedroom, kitchen, outdoor activities and more. A sweet gift for family and friends in summer. 5. Energy-saving technology: Compared with tower fans such as air conditioners, our fans are more efficient and energy-saving. It's also healthier because our fans circulate the airflow around your room. Notes: Don't leave 1 star and 2 star feedback without asking for help. If you have any questions, please contact us. We will try our best to solve any problems and provide you with the best customer service.