Helps you keep a cool head when surfing or working with a PC/notebook/tablet/smartphone/laptop Flexible gooseneck for optimum positioning  No risk of injury due to flexible fan blades  Super compact and easy to transport along with a notebook/tablet  Low power consumption which saves the battery power of notebooks  Power supply via the USB socket on the device  USB plug type A: for connection with a notebook/PC  USB plug type micro: for connection with a smartphone/tablet/power pack  Supports USB On-The-Go (USB OTG)  System Requirements: Smartphone/tablet must support OTG technology! 6 USB mini fans, black ,3 USB mini fans, blue ,3 USB mini fans, green