Versatile indoor and outdoor use - This fan is designed for both indoor and outdoor environments, providing convenient cooling wherever you are, whether at home, in an office, on a patio, or while camping. USB rechargeable and portable - USB charging allows easy power from a power bank or a computer. The built-in rechargeable battery eliminates the need for frequent battery replacements, making it convenient for travel and everyday use. Three speed settings - Choose from three airflow levels to match your preference and the situation, from a gentle breeze to stronger cooling. Rechargeable design - The fan is rechargeable, so you do not have to constantly replace batteries. USB charging keeps setup simple and reliable. Wet cooling function - In hot weather, the wet cooling option provides more effective cooling by adding a water-based enhancement to the airflow when needed. Compact, durable design - Lightweight and portable, with a sturdy build that is easy to carry and place on desks, tables, or small surfaces. Use scenarios - Office or home desk: keep your workspace comfortable without relying on central cooling. - Outdoor activities: patio, balcony, camping, or picnics where a compact fan improves comfort. - Travel and temporary accommodations: hotel rooms, car trips, or other temporary spaces where USB power is available. Key attributes at a glance - Function: indoor and outdoor cooling with a wet cooling option - Compatibility: USB charging compatible with power banks and computers - Size and portability: compact, lightweight, easy to move and position - Performance: three adjustable airflow speeds for customized cooling - Maintenance: rechargeable design eliminates battery replacements