LeoVera Unisex LED Shoes USB Charging Flashing Sneakers Light Up Shoes for Women Men Material: Knit fabric top & Non-skid rubber sole Switch Instruction: Hidden switch button beside the charging port. Press it to switch on. With each press,it changes to another light mode. Press the switch for 12 times to turn the light off , or keep pressing for 3 seconds to turn off the power LIGHT MODES:1 red(steady) 2 green(st') 3 blue(st') 4 yellow(st') 5 skyblue(st') 6 purple(st') 7 white(st') 8-11 Light flash 12 light off chargers, mobile power can also be used, safe and reliable. One charge for 2~3 hours can provide 8~10 hours of lighting time These Light-up LED shoes are perfect for the club, a rave party, or just a night out on the town. It is your best choice for footwear for any occasion you want to be noticed at 35/4.5 B(M) US Women/3 D(M) US Men=Fit foot length 214-219mm 36/5.5B(M) US Women/4 D(M) US Men=Fit foot length 220-225mm 37/6.5B(M) US Women/5 D(M) US Men=Fit foot length 226-231mm 38/7.5B(M) US Women/6 D(M) US Men=Fit foot length 232-238mm 39/8 B(M) US Women/6.5 D(M) US Men=Fit foot length 239-244mm 40/9B(M) US Women/7.5 D(M) US Men=Fit foot length 245-251mm 41/9.5 B(M) US Women/8D(M) US Men=Fit foot length 252-257m 42/10.5B(M) US Women/8.5D(M) US Men=Fit foot length 258-264m 43/12B(M) US Women/9D(M) US Men=Fit foot length 265-270mm 44/13 B(M) US Women/9.5 D(M) US Men=Fit foot length 271-277mm 45/14B(M) US Women/10.5D(M) US Men=Fit foot length 278-284mm INSTRUCTIONS:Press the switch to open the first sound mode, any sound will trigger the change in the color of the lamp.With the sound of the size of the flashing light, the higher the decibel sound, the faster the speed of the LED color conversion. PRODUCT FEATURES:ordinary light / sound emitting.7 colors,16 16 lighting modes.