1. Lightweight, foldable, and easy to use. Please refer to the instruction manual or search for 'Funky Glasses' in the App Store/Play Store to download it. 2. Equipped with a USB rechargeable battery, charging for 2 hours provides approximately 5 hours of usage. The charging port is located on the left side of the frame. It features charging protection—when charging, a red light will illuminate, and once fully charged, the light will automatically turn off. 3. Offers 4 modes to choose from: text, graphics, animation, and music rhythm. In text mode, you can select multiple languages, adjust speed, and more. Graphic patterns include brightness brushes and creative designs. In animation mode, the app provides 31 animations and 11 patterns to choose from. Music mode features a builtin microphone and musical rhythm patterns for dynamic displays. 4. Unique, fun, and entertaining! Light up your night with these LED glasses. for raves, music festivals, parties, Halloween, clubs, Year's Eve, or anywhere you want to stand out!