DC Portable USB Tower Fan Cooling Bladeless Air Conditioner. (Black) Simple but creative design of tower and 2 colors are provided. Adjustable high and low speeds of wind are provided for you to choose. Size: 10.5*33cm(diameter*height) You can connect USB port on PC, laptop, notebook or host of desktop computer and so on. Brand Trademarks: DC , Record Number: 86526328, more details, please check by uspto gov.