1. FAN 2. DC Brushless Motor 3. 5V or 12V DC power ... -12V DC3. Rated power: 5W4. Working power supply: 5V DC - Computer USB - Mobile phone USB - 6V cell - 5V DC adaptor 12V ... , Ecological-friendly9. Quiet, convenient, decent10. Easy application11. Suitable for mobile, computer, outdoor, office, baby room, living room, car, camping, travel etc ...