Example SoundCard - this is what they look like

To Listen to the below card's audio message, scan its QR code with your iPhone camera, the SoundCard app - or any other QR code reader, really.
Your SoundCard

SoundCard. Your moments in sound.

Effortlessly share your best moments with your friends and family. Let them be part not only of what you see on your journies, but now, also of what you hear. Send a love letter to your loved one or simply greetings to old friends.
SoundCard - Postcards reinvented.

App Store