Product AdvantagesFoldable & Space-Saving: Three-step folding design allows the fan to collapse in seconds, making it compact and easy to store or carry.Dual Power Options: Built-in rechargeable battery (1800–3600mAh) supports up to 8 hours of use, with USB Type-C fast charging for convenience.4 Adjustable Speeds: One-touch control lets you switch between 4 wind levels, including natural wind mode, to suit different needs.Quiet Yet Powerful: Designed with low-noise motor technology, perfect for sleeping, studying, or working without disturbance.Wide Application: Ideal for home, office, bedside, camping, and travel. Lightweight and portable for daily use indoors or outdoors.Product SpecificationsModel: F28B / F28CBattery Capacity: 1800–3600mAh (up to 8 hours use)Charging Port: USB Type-C, 5V–5.5VPower Consumption: 3.7–5.5WSpeed Levels: 4 (with natural wind mode)Rotation Angle: 180° adjustable headTimer Settings: 1H / 2H / 4H / 6HDesign: Foldable, compact, and easy to storeNoise Level: Low-noise operation for quiet environments