Feature:1. Detachable Fan: Equipped with a detachable fan that moves fresh air along your back and shoulders, sweat evaporates instantly, keeping you cool on hot days.2. Cooling Function: Cooling jacket to manage heat stress. You can feel very comfortable at work and avoid heavy sweating and heat stroke.3. Ergonomic Design: This cooling fan jacket is ergonomically designed to promote sweat evaporation, improve ventilation, and increase the amount of air blown to the entire body, ultimately reducing body temperature effectively.4. Good Performance: It is also a sun protection jacket with heat resistance and breathability. It is light weight, easy to carry and also suitable for travel. Fan cooled jackets can help you stay cool in hot job site conditions.5. Suitable: For workers, construction, gardening, hiking, walking, kitchen cooks, tour guides, farmers or warehouse workers, also a good solution for MS patients.Specification:Item Type: Cooling Fan JacketMaterial: Polyester cotton, ABSVoltage: 5VPower Interface: USB.Package List:1 x Clothing2 x Fan1 x Connection CableNote:Not sold with power supply, need to buy their own mobile power bank.