【Removable Base & Cellphone Holder】This hand held fan is also a desk fan, its base are removable. If you just want relaxed time, and don't want to hold your portable fan rechargeable, you can put it on any platform in front of you, and lay your cellphone with some music on the base holder., 【Strong Cool Airflow】This USB battery fan is run by copper brush-less motor, supporting 4 pcs fan blades to run at high speed and blow powerful wind, bringing cool air to you much more efficiently. The mini fan for desk is also quiet operation, making no noise., 【3 Adjustable Speeds】 Low/medium/high speed mode with gentle back light, you cna easily set portable fans' wind speed by press power button. And the light button is separated from wind speed button, so turn on light or not is depends on you., 【Summer Essentials for Everyone】This handheld fan only measures 8.864.131.65in / 22* 10.5* 4.2 cm, it is very convenience to keep the fan in your bag, or just carry it on your hand. It is also an amazing portable travel fan when you are waiting in line, traveling, visiting Disney World, joining musical festivals, watching football game and other outdoor sports, also great for home office., 【Suitable for Any USB Charging Devices】: Recharged by 5V output adapter, and a USB charging cable. USB charger, laptop, computer, power bank and other USB-enabled devices are all good power sources for this personal fan.