Speaking Card — 'Really send a message'

From the website:

Voice Card

Add a personalized recorded message to the gifts you give.

Rather than searching for "just the right card" to send along with a gift, record a 10-second personal message in your own voice!

Paper-thin voice "card" clips onto a document or object.

There's even room to stick your own "sticky" note.

Message is retained even if button battery (included) dies or is removed.

LED record/playback indicator.

2-1/2"W x 4-1/4"H x 1/4"D.

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Bag the gift — plenty of possibilities in the card space with this puppy.

A set of two — one red, one black — is $9.99.