Interactive Pop Up Birthday Cards with Blow-Out Candle ：This unique happy birthday cards comes with a "blow-out" LED candle device. When you blow, the candle turns off and triggers cheerful celebratory music—instantly creating a lively and joyful atmosphere. This interactive feature is perfect for children, partners, or any beloved family member and is sure to bring smiles and laughter.

Musical Birthday Cards with 3D Design：When you open the birthday cards, you will instantly see a beautiful 3D birthday cake and the cheerful "Happy Birthday" melody. This singing birthday card perfectly combines visual surprise with musical celebration, leaving a deep impression.

Lights Embellish, Shining Birthday Cards Wishes：The birthday cake in the card is also equipped with colorful flashing lights, adding a dreamy atmosphere to the overall design. Whether it is day or night, it is the highlight of the party.

What Will You Get?：Each BEVBOVCARD musical birthday cards comes with a blank note card, an elegant white envelope, and a detailed instruction booklet to help you easily mail and express your heartfelt wishes. These thoughtful details enhance the quality and elegance of the happy birthday card, making your gesture even more meaningful and memorable.

A Unique and Heartwarming Gifts Choice：More than just a card, this creative pop up birthday cards delivers an experience. It's a wonderful birthday surprise for husband, dad, sister, mom, kids, women, men, granddaughter, boyfriend, her, him, or parents—sure to create cherished memories filled with laughter and emotion.