Mini battery rechargeable fan: small but powerful, this palm-sized portable cooling fan has a built-in 500mAh rechargeable lithium battery, 3 adjustable powerful air speeds, fully charged in 1.5 hours and works wirelessly for 1-3 hours. Features a built-in LED gradient lighting system. Suitable for children and adults and perfect for travel. 3-speed and fade LED light effect: The USB handheld fan is equipped with a high quality motor for long-lasting durability and features 3 adjustable speed levels - natural/gale/strong - to adjust the right fan speed with a repeated press of the power button. Long press on the switch to turn on the fade light mode, with 6 ABS fan blades and a wrap-around fan head for dustproof silence and durability. A great way to cool off on your commute or a leisurely stroll. Mini portable pocket fan: weighing just 75 grams, the mini hand fan can be carried in your backpack or handbag, or even in your pocket when traveling outdoors. You can also hang it around your neck with a lanyard strung around the bottom, freeing up your hands without any weight. This simple and compact design provides a comfortable breeze wherever you go, making it ideal for summer travel or outdoor sports. Rechargeable battery and safety guarantee: With a micro USB power port (charging cable provided), the USB fan can be charged using USB chargers, laptops, computers, mobile power, car power and other USB enabled devices. This handheld fan has a built-in 500mAh rechargeable lithium battery that is CE certified and ROHS compliant. Safe and environmentally friendly. Versatile: 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 desktops, desks, beach holidays, travel, walks, hiking, climbing, camping, exercise and much more.