Endless Birthday Burp Musical Prank Card with Hidden Glitter

This disgustingly delightful birthday card transforms the classic birthday song into an endless symphony of burps that plays for hours. What looks like an innocent birthday greeting becomes a 5-10 hour celebration of the most immature sound effects known to humanity.

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

*Plain white envelope included in all cards

Perfect Occasions for Birthday Burp Chaos

• Kids' birthday parties (especially for children who find burp sounds hilarious)
• Adult birthday pranks (for friends who still laugh at bathroom humor)
• Office birthday celebrations (guaranteed to make the day memorable)
• Gag gift exchanges
• Revenge gifts for practical jokers
• Any time you want to ensure a birthday is truly unforgettable