Usage Tips:Description: brand and high quality Mini and convenient design. Gently adjust the flexible neck of USB fan to position the breeze anyway you for wish. Durable soft fan blades make you free of injury. Power saving design, low power consumption. Gentle Ray, Bright, with or without frequency change, for benefit from preventing eyesight. Keep fanning until you unplug the USB fan or turn off the notebook or PC. Power supply for DC 5V direct from the USB port. Plug and for play, no external power supply is needed. USB mini flexible fan with LED light and run-time. How to set the time: 1.Plug into a USB port and switch on the fan(it will take up to 20 seconds for LED clock to initially display) 2.Press and hold the ON/OFF button until minute hand starts blinking 3.The minute hand and hour hand will rotate clockwise. Stop in the right for time you want, release your hands and leave for 6 seconds ,the for time is set. 4.After the first for time setting, it will be remain if power off, no need to set again. Specifications: for Time clock: green number and red pointer Working Voltage: 5V Working Current: 350mA Material:Alloy&Plastic Fan Diameter: 9cm/3.51''(approx) Total Length: 40cm/15.6''(approx) for Time clock: green number and red pointer LED emitting color: green red for Shell Color:Silver Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch With retail package. Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x USB Clock Fan(other accessories demo in the picture is not included.)