Feature 1. Creative Mother's Day Card:The mother's day gift funny greeting card can play the sound "mum, mummy, mamma, mum, mum " for 3 hours, and there is no off switch ONLY WHEN you tear and destroy it. Just Imagine that. Haha, how fun Mom will get surprised and relaxed. 2. Easy To Use:The endless mum prank greeting card comes NOT ACTIVATED so that you have a chance to sign the card and send it off to your mum. Pull the tab, get annoyed with the endless music, tear the mothers day card and out pop much glitter. That's it 3. Premium Material:The joke mother's day card is made of high quality paperboard, good-textured, smooth, not easy to break, odorless, eco-friendly. 4. Reeting Card Size:The Mother's Day card measures 10.5 x 14 cm(4.1 x 5.5 inches) and comes with a matching envelope. Printed on high-quality paper.You can write your blessings and signatures on the card. 5. Great Gift Idea: This funny prank card is a great choice for family members to give as a collective gift, creating a fun and joyful atmosphere. Specifications: Material: paper Power supply method: 2 button batteries (sent) Packing accessories: 1*Mother's Day musical greeting card size: Unfold: 14x21cm/5.51x8.27in Envelope size: 17x11.5cm/6.69x4.53in Configuration: greeting card + built-in sounder + sequins + envelope Packing list: 1x Mother's Day Music Greeting Card