About this item COOL OFF - Enjoy the temperature of hot summer days with a cooling system within hand's reach. This is an accessory you can keep in your bag; it is a tiny portable cooler that fits in the palm of your hand. PORTABLE -The mini ventilator has the perfect size to fit in your pocket without suffering any damage. Both parts are made of gum (rubber). A flexible and durable gadget with an easy installation. NO BATTERIES - You will not worry more about cables or plug connectors. The electric engine uses your cell phone as a source of energy to provide a silent, refreshing breeze of air at the right moment. It is a small and compact device that can be hooked to android C TYPE OTG Mobile Phone Only. Micro USB Fan is the perfect solution when you are hot and need cool air blowing on your face while on your smartphone. QUALITY MATERIAL - With its body made with hard TPE plastic, the cooling unit has two soft plastic rotating blades that are each 1.5 inches long, providing enough air movement to blow a fresh breeze and cool you down. With no cords or cables to deal with, it gets plugged in and instantly starts spinning. Although the fan is small, compact, and weighs about an ounce, its motor speed can reach 16000 RPM, has a 5v voltage and 80 MA current, and can run continuously for longer time period. Plug and play,No driver installation required. Rotatable fan with safety soft foam fan blades. Support to Android & C TYPE OTG phones.