1972 Summit Series 
Hockey Cards

From Micra Soundcards, Inc.:

New innovative marketing product for promotional campaigns patented "SoundCards" featuring custom high quality digital sound and beautiful four-color litho images! Excellent concept for corporate messages, sales slogans, new product introductions and more. Exciting for sports marketing, entertainment, politics, history and virtually unlimited uses in any language. Any sounds can be used too! Stand alone card dimensions: 2.5" x 3.5" x 3mm thin! MICRA "CardPlayer" is a self-contained amplifier unit featuring a volume control and replaceable batteries. Licensed properties also available!

View the Micra Soundcards Website