Product Features: *USB interface, Plug and Play No external power supply. *Power supply: 5V from the USB port. *Less noise and less heat operation. *Provide cool wind in hot weather. *For PC/Notebook with USB port. Ultra-quiet, Pitch angle, Safety net design, 360 Degree Rotation, With switch / button, USB Interface, USB power adapter required for the 5V...1000MA Notebook and desktop computers can be used. Wind comfort, elegant appearance and durable. Personalized different colors. Common colors blue and black(Other colors require MOQ500PCS) Note Matter: 1. Do not let children touch 2. If there is spark in use, smoke and smell of the case, immediately turn the power off and unplug the USB plug. Do not disassemble the fan. 3. Do not use water or cleaning water to clean, wet hands do not touch the machine. 4. Do not use liquid or metal lubricant into the fan inside. 5. Do not place or the vibrations in unstable areas, where moisture away from the large amount of water, avoid direct sunlight, hot smoke, the room temperature use. 6. Fan to remove the power cord, hold pull the plug, not strong pull. Long-term non-use, please pull out USB plug. Specifications: USB power plug. Fan Dimension: 149.73 * 96.3 * 146.5 mm. Fan diameter: 96mmWeight: 250g Power consumption: 2.5 ± 0.25WCord Length: 1.2mBox Size: 155 * 105 * 155 mm