Mini Battery Rechargeable Fan: Small in size but powerful, this palm-sized portable cooling fan has a built-in 500mAh rechargeable lithium battery, 3 levels of adjustable powerful wind speed, fully charged in 1.5 hours, and works wirelessly for 1-3 hours. Features a built-in LED gradient lighting system. Suitable for kids and adults, great for travel. 3-Speed & Fade LED Light Effect: The USB Handheld Fan is equipped with a high-quality motor, durable and has 3 adjustable speed levels - Natural / Windy / Strong - Press the button repeatedly to adjust the proper fan speed Power button. Long press the switch to turn on the dimming mode, equipped with 6 ABS fan blades and wrap-around fan heads, dustproof, quiet and durable. It's a great way to cool off during your commute or a leisurely walk. Mini Portable Pocket Fan: Weighing only 75 grams, the mini handheld fan can be carried in a backpack or handbag, even in your pocket when traveling outdoors. You can also hang it around your neck with a lanyard at the bottom so it's hands-free and without any weight. This simple and compact design brings a comfortable breeze wherever you go, perfect for summer travel or outdoor sports. RECHARGEABLE BATTERY & SAFE GUARANTEE: The USB fan is equipped with a micro USB power port (charging cable provided), which can be charged with USB chargers, laptops, computers, power banks, car power sources, and other USB-enabled devices. Built-in 500mAh rechargeable lithium battery, this handheld fan is CE certified and ROHS compliant. Safety and environmental protection. MULTI-FUNCTIONAL: This mini fan is easy to hold in your hand and carry around in your bag, this personal fan can also be placed on a flat surface, perfect for desktop, office desk, beach vacation, travel, walking, hiking, climbing, camping, exercise and more. Product configuration: host*1, data cable*1, manual*1