Endless Screamer Birthday Card with Glitter
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Shop EU PartnerIt doesn't sing. It screams. Every 30 seconds. For hours.
Most musical cards play a song. This one screams every 30 seconds. It takes a pause and Thirty seconds later, another one. And another. For hours, until the battery dies. It's the only card in our catalog designed not to entertain, but to keep the recipient on edge.
The cover is a striking black-and-white "Happy Birthday" in dripping paint-style lettering — and the art sets the tone before they ever open it. They'll know something's off. Then they open it. And they wait. And then they scream. The recipient will absolutely text you "WHAT did you send me?!" — which might actually start a conversation if you haven't talked in a while. Unlike a paper card that gets read once and forgotten, this one keeps haunting them for hours. For horror fans, prank veterans, and anyone whose birthday could use a little jump-scare energy.
A note on who this card is for: it's loud and designed to startle. We'd skip it for kids, anyone easily spooked, and anyone with anxiety or heart conditions. For everyone else who can take a scare — it's our most committed prank card.
How the Endless Musical Card Works
- Open the card to test the sound, sign it, then close the card to stop the sample.
- Insert the card into the envelope and pull the tab from the spine to arm it.
- Once they open the card, a loud scream plays every 30 seconds — even if they close it — and keeps going for hours, until the battery dies.
- If they try to break the card to stop the screaming, a hidden glitter trap is waiting inside.
*Plain white envelope included in all cards
Great For
- The friend who screams at their own party — now the card does it for them, every 30 seconds until the battery dies.
- The prank veteran — the one who's already gotten every prank card you've sent. A scream every 30 seconds resets the bar.
- Office birthdays — a scream going off from a desk drawer every 30 seconds is the kind of workplace event that becomes a long-running story.
- Anyone who tries to kill the sound — prying it open to stop the screaming is exactly when the glitter trap gets them.
- Someone who scares easily — affectionately. Maybe send a warning text first. Or don't.
Frequently Asked Questions
Can I sign the card before it activates?
Yes. You can safely sign the card and it will play one-time. Close the card and it will stop.
How long does the song play?
Once activated, the card plays continuously for 3 to 6 hours until the internal battery dies. There is no off switch. Please note; batteries are like a sponge so if they open it again you'll get more music.
How do I activate the card?
We suggest inserting the card into the envelope first the remove the instructional tab from the spine. The moment your recipient opens the card, the song (or sound, depending on your design) starts playing automatically and won't stop until the battery dies or it's broken.
How do I stop the song?
Once activated there is no off switch. The song plays until the battery dies. Attempting to destroy the card triggers the hidden glitter (or in some cases the glitter is found when the pull strip is removed). That's the prank.
Does the card come with a Glitter Envelope
No. All cards ship with a plain white envelope. The glitter is already built inside the card itself, either hidden inside waiting to be unleashed or behind a pull-strip reveal. If you want the full glitter ambush on the outside too, we sell Glitter Trap Envelopes separately.
