👑Warm tips: there is no pre coated glue on the envelope, so you can see the battery pack, which is convenient for you to change the battery; When you use it for some designated occasions, you can turn off the baffle in time, 🎂Quality material: printed on quality paper, the pop up card with envelope is elegant and durable, you can write your message and send it as a greeting card in an envelope. 🍰Folding size: the LED birthday card with colorful cake design is approx. 6 x 6 inch; The laser cutting design is beautiful; There are many spaces on the birthday greeting card for you to express your birthday wishes and greetings. 🧁Wide applications: you can write the wishes and love on the music birthday card to your loved ones, such as your colleagues, your brothers, your friends and relatives; It's the nice way to let them know how you love them. 💝Pretty gift: these pop up musical cards are inspired by birthday celebrations, also suitable for most holidays, such as Valentine's Day Anniversary, Mother's Day, Father's Day, New Year and so on, will leave you an unforgettable memory.