CNN: New credit cards dangle from keychains
Jeordan Legon reports on the new keychain-based payment devices.
Firms are using radio frequency signals, scanners and stronger plastics to make it easier for customers to give in to impulse. It's too soon to know whether the new plastic will go the way of the 8-track. But analysts say in the cutthroat credit card business, impressing finicky customers counts -- especially when a product makes it faster and more convenient to get through a checkout line.
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