1. This card is an exceptional way to wow someone on their birthday,features a beautiful pop-up collage design,has color-changing lights and plays classic "Happy Birthday" song to enhance the birthday celebration atmosphere. Opening it up is like opening up a birthday cake with a song and a picture to Wowthe birthday protagonist2. Different from traditional birthday card,this smart birthday card has a little sensor on one side of the candle that the recipient can blow in to,the light will shine and extra blessing applause will promote the happiness of birthday after a gentle blow3. This music card features several flashing modes and colors, and multicolored sparkling lights glow in sync with the birthday song. Combination of audio and visual technology definitely creates a little happy birthday time or send best wishes to your family and friends. Classic luxury envelope that is sealable for easy mailing. Also, there is a blank space on the back of the card for you to write your blessing message freely4. Made of high-quality thickened fancy paper,and traditional hand hollowing carving and lifelike painting make the card handicraft to send as an attractive birthday gift