Features: Compact size for easy portability, fits in pockets or on tables. Strong airflow for effective cooling despite its small design. USB rechargeable, compatible with various USB-enabled devices. Long-lasting performance of over 20 hours even on low speed. Minimal noise level, ideal for studying or sleeping without disturbance. Enhances comfort by improving air circulation in any environment. Designed for all summer activities, including outdoor events and home use. Two adjustable fan speeds for personalized cooling. Dual function as a 2000mAh power bank for charging other devices. Specifications: Color: white/pink/green Battery capacity: 2000mAh Power: 1.5w Weight: 120g/0.26lb Interface type: USB Size: 37*37*108mm/1.45*1.45*4.25in Use time: 1 wind speed can be used for 3 days Noise: 36dB (inclusive) or less Product includes: 1 PC *portable fan (with USB cable) Notes: 1.Products are all measured manually, there may be some deviation. 2.Due to different shooting lights and displays, there may be a little color difference