GadgetMadness: We find the coolest gadgets first

A very simple yet practical device for the everyday person who carries an important credit card of theirs; The Card Beeper is essentialy an alarm system for your credit card. It simply beeps when the credit card is missing from it. Yes simple it is but none the less it will save you from losing losing your card or at least preventing the unwanted charging on it as soon as possible. It beeps every 20 seconds at a non discreet but noticeable pitch and will also safeguard it from magnetic fields.

The Card Beeper :: Seihin-world