Key benefits Long lasting battery operation: Built in 4000 mAh battery delivers up to 16 hours of continuous cooling, enabling extended use at home or outdoors without frequent recharges. airflow with 100 levels: 100 adjustable speed settings let you select from a gentle breeze to a powerful gust for precise cooling in any environment. LED digital display for easy monitoring: Clear digital screen shows current speed level and remaining battery life at a glance, allowing convenient monitoring and simple adjustment. Versatile 3D air circulation: Multidirectional air duct can be adjusted up to 90 degrees vertically, ensuring airflow direction for efficient cooling throughout your room, office, or kitchen space. Core features Builtin 4000 mAh battery provides up to 16 hours of continuous cooling on a single charge. 100 adjustable speed settings to tailor airflow from whisper quiet to output. LED digital display shows current speed level and remaining battery life for quick, at a glance status. Multidirectional air duct supports vertical adjustment up to 90 degrees for flexible airflow direction. Suitable for extended home use or outdoor activities, with reliable performance in various environments. Use scenarios Living room or bedroom: keep a space comfortably cooled for long periods without frequent recharging. Outdoor settings: ideal for patios, camping trips, or travel days where access to power may be limited. Office desk or kitchen counter: cooling with precise fan speed control and easy battery monitoring.