NOTICE:It is our own size chart. So you need choose size according to foot length in the product description. Or contact us for size suggestion.
SWITCH INSTRUCTION: Hidden switch button. Find the "click". Press it to switch on,It starts with steady red light. With each press, it changes to another light mode. Switch hidden inside shoes,it nearby the USB port, you can press it to fix the shoe on one color, or flashing.
LIGHT MODES: With 7 colors and 11 modes. From mode 1-7 are solid one color. From mode 8-11 are color or mixed color with light flash. The 12th switch will close the light. (You also can press the switch for 2-3 secs to turn the light off directly. The light color included: red, green, blue, yellow, sky blue, purple, white.)directly. The light color included: red, green, blue, yellow, sky blue, purple, white.)
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.