Endless Cool Cat Birthday Musical Prank Card with Hidden Glitter

This ingenious Cool Cat birthday prank card transforms the classic "Happy Birthday" song into an endless symphony of cat meows that plays for hours once activated. What looks like an innocent birthday greeting becomes an unforgettable musical experience that can't be turned off!

How the Endless Musical Card Works 

1. Open the card to test the sound; sign it, close the card to stop the sample
2. Insert the card into the envelope; pull the tab from the spine to arm it.
3. Once the recipient opens the card it will start and loop non-stop even if they close the card; it will run until the battery dies; hours later
4. If the recipient tries to break it we hid glitter inside the card

Perfect Occasions for Cat Musical Pranks

• Coworker birthdays (especially cat lovers)
• Friend birthday surprises
• Office revenge gifts
• Cat-themed party gag gifts
• Birthday pranks for family members
• Any time you want to give an unforgettable musical greeting

 Plain white envelope included in all cards