Material: ABS Size: 128*135*198.5mm/ Color: gray, beige Motor type: brushless motor Noise: 36dB (inclusive) or less Built-in battery capacity: 2000 mAh-4000 mAh Number of fan blades: 6 or more Battery life: 3-6h (inclusive) Maximum power: 5w Operation mode: touch Rated power: 5 Power supply: USB Wind speed: 10 Fan category: USB fan Rated voltage : 3.7 1.90° wide-angle swing head air supply, covering a larger space, quickly improving indoor air circulation efficiency 2. Multi-speed adjustment with timing function to meet the needs of different seasons and usage scenarios 3. Low-noise operation design to create a quiet and comfortable learning, working and sleeping environment 4. Compact body structure, space-saving and easy to place, suitable for living room, bedroom, office and other places 5. Energy-saving and efficient motor, to ensure long-term stable operation Package includes: 1*digital display circulation fan