Yongchengg Fashionable Women Men Women USB Charging LED Shoes Flashing Sneakers fur NOTE:Please do not use it as running shoes! CHARGE INSTRUCTION: Easy charge like your cell phone with the attached USB charging cable.Switch on the shoes when received and light up until all power gone.Then charge both shoes for 3 hours Size Tips:We suggest you check our detailed size measurements in the 'Product Description' part LIGHT MODES:1.light on from red(steady)-2.green(st')-3.blue(st')-4.yellow(st')-5.skyblue(st')-6.purple(st')-7.white(st')-8.auto-change mode-9.light off CHARGE INSTRUCTION: Easy charge like your cell phone with the attached USB charging cable.Switch on the shoes when received and light up until all power gone.Then charge both shoes for 3 hours.