Product Description: Item Type: Couple Sneakers Gender: Women/Men Shoe Width: Medium Shoe Upper Material: PU Leather Sole Material: Rubber Lining Material: Grenadine Pattern type: Solid Heel Type: Flat Closure Type: Lace-Up The Upper Height: Low Toe Shape: Round Toe Feature: Fluorescent Process: Adhesive Opening depth: Shallow mouth Style: Fashion/Casual/Leisure Season: Four seasons Character: Breathable, comfortable Color: As shown Women's Shoes Size: 37, 38, 39, 40, 41 Fit for Corresponding EU Size: EU Size: 37, 38, 39, 40, 41 US Size: 6.5, 7, 8, 8.5, 9.5 UK Size: 4, 4.5, 5.5, 6, 7 AU Size: 6.5, 7, 8, 8.5, 9.5 Men's Shoes Size: 39, 40, 41, 42, 43, 44 Fit for Corresponding EU Size: EU Size: 39, 40, 41, 42, 43, 44 US Size: 6.5, 7, 8, 8.5, 9.5, 10 UK Size: 5.5, 6, 7, 7.5, 8.5, 9 AU Size: 6.5, 7, 8, 8.5, 9.5, 10 Features: 7 kinds of pure color light and 1 kind of colorized light for you to choose, you can and only can change the color type by the switch hidden inside the shoes. Note: 1. When charging, pull the plug slowly. 2. The switch is hidden inside the shoes(nearby the USB port), you can press it to fix one color,or colorful flashing. 3. No indicator light when charging 4. A full charge time is 3 hours. Package Contents: One pair of Shoes, 1 x USB cable