The Ultimate Prank Mother's Day Card! This endless Mother's Day card plays a rather unpleasant and potentially PTSD inducing loop of "mum, mummy, mamma, mum, mum!" The nagging loops non-stop (3+ hours), opened or closed, until the battery dies. Add extra spice to your card with our Flying Butterfly Card Prank. All our prank cards come not activated so that you have a chance to sign the card and send it off to your mum. The card includes glitter inside, which will be released if/when she rips it apart. To use the card, open it and add your personal Mother's Day message. The song will play when opened so you can hear the sound. Close the card and place it into the envelope. Pull (do not tear or rip) the safety tab out of the card to activate it. Gift it to your Mum and get ready to laugh hysterically when she opens it and realizes the nagging sound will never stop. Let her know the sound will only stop if she breaks it apart and destroys the speaker. Continue rolling on the floor in laughter as she's covered in glitter. Happy Mother's Day! Key Features: Plays an endless loop of "mum, mummy, mamma, mum, mum!" Nagging sound lasts for 3+ hours Glitter inside the card Includes Flying Butterfly Card Prank Can be personalized with a Mother's Day message Activation tab to start the sound Sound stops only if the card is broken apart Hilarious prank for Mother's Day