GLOWING MODE: With single button, neon LED glasses is easy to use. Long Press the button for ON/OFF. Short press to change mode into different patterns, like fish, fireworks, dollars, flow, skull, heartbreak, flashing, heart, 8 modes to be changed. You can free switch patterns according to your party theme or your feeling. Easy and Funny. .USB RECHARGABLE: The Led light glasses built-in Li-batteries. It takes 1 hour to full charge by usb, continuous work 6 hours after full charge, completely satisfied what your need. .EASY TO USE: Single-button design. Press the button on the battery pack to change the pattern, no need any app installed. Ergonomic design and comfortable to wear, easy to see out of, and the lights has no impact on vision at all. .ECO-FRIENDLY: Flashing neon rave glasses is made of plastic (PVC) , which offers perfect visual effect and longer continuous glow time at night. It is also portable, durable and lightweight. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.