3D birthday card with color-changing light and music: this Happy Birthday card displays a beautiful 3D design while playing the Happy Birthday thats sure to bring a smile to any birthday celebration for her or for him. The whole cards birthday design is beautifully bathed in a display of color-changing lights that glow in sync with music.Easy to use: when the cards opens, it lights up and automatically plays the warm song, no need to press the button. The card music lights will light up at the same time for 30 seconds.Perfect birthday gifts: there are funny birthday card, matching envelope. No need to buy other accessories. Warm birthday gifts for her or him, your kids, mom, son, daughter or parents.Made with high-quality materials: the birthday greeting card made of environmentally friendly paper and laser cutting technology to create a beautiful 3D scene with a highly detailed design.Write kind birthday greeting inside: product Dimensions: 5.9 x 5.9 inches. The card has a lot of blank spaces for you to express your birthday wishes and greetings that wishes your loved one a Happy Birthday.