Feature:1. 3D Effect: When you open the greeting card, it will produce 3D effect, giving you a special feeling, which means blessing and good luck.2. Premium Material: These 3D pop up cards are made of premium cardstock and shiny material with foil stamping, laser and embossing design.3. With Songs: Christmas 3D greeting cards are not only practical, reliable and wearable, but also beautiful and eye catching in appearance, with songs jingle bells, which can be used by pressing the switch.4. Pop Up: These 3D pop up Christmas cards are flat when folded; you will be surprised when you open the card and see a sparkling Christmas tree, especially when it shines in the sunlight, illuminated by lights.5. Christmas Greeting Gift: Sending this card to your friends in an envelope is very formal, personalized Christmas cards express your care and wishes for your family and friends, and can be sealed for easy mailing.Specification:Item Type: 3D Christmas Greeting CardMaterial: PaperBattery Type: Button Battery (With Built In Battery Delivery)Battery Model: LR1130Battery Capacity: 70mAhSong: Jingle BellsProduct Size: Approx.Greeting Card: 195 x 110mm / 7.7 x 4.3inEnvelope: 205 x 120mm / 8.1 x 4.7in.Package List:1 x 3D Greeting Card1 x Envelope