Nevin 7 Colors LED Lace Up Luminous Unisex Sneaker Men & Women USB Charge Glowing Leisure Athletic Shoes microfiber Rubber sole Knit Fabric Light Color Modes: Colors change in steady 7 colors from red, green, blue, yellow, sky blue, purple to white. Colors slow fade, strobe and fade from one color to another slowly. Use Instruction: Light switch button is beside USB charging port. Please charge shoes over 3hours and it can last over 8 hours light up.Connect USB charging cord to computer or power bank. Suitable for party, sports, indoor, outdoor any occasion, casual and trend Available in Men's and Women's sizes. Make sure to measure your size in CM (view size chart in PRODUCT DESCRIPTION below)