A handheld mini USB rechargeable fan is a small, portable device designed to provide a refreshing breeze whenever and wherever you need it. It is typically small enough to fit in your hand, making it perfect for use at home, in the office, or on-the-go. The fan is powered by a rechargeable battery that can be charged using a USB cable. This makes it convenient to charge the fan from a computer, power bank, or any other USB-enabled device. The fan typically has two speed settings, allowing you to adjust the airflow to your preference.