... )Good air-cooling, healthy,eco-friendly 2013 new products Mini tower fan, USB fan with LED MINI TOWER FAN ---new upgrade versionUSB line operated ... DC:5V3) Material: ABS 4) Plug the USB line(included) into the fan and into an laptop USB5) Place the fan on ... button function:(on/off, speed, swing) . 3 speeds, low, medium and high, press the spreed to change. An LED light will ...