Have you ever had that sinking feeling that comes when you go to use your credit card and it is not in your wallet? You suddenly begin to wonder if you accidentally left it somewhere, - but where? Now you will never leave credit cards, your driver's license or an ID card behind again. This handy credit card holder starts to emit intermittent gentle vibrations as soon as a card is removed from any of the 5 available pockets. (vibration alert is used so no one else is disturbed) It will remind you every 10-12 seconds in the first half minute and then every 5 seconds after that. It does not stop reminding until you replace the card back in its pocket. 3v lithium battery is included. Comes with a stylish leatherette carrying case. Gift boxed. Makes a great gift! Have you ever had that sinking feeling that comes when you go to use your credit card and it is not in your wallet? You suddenly begin to wonder if you accidentally left it somewhere, - but where? Now you will never leave credit cards, your driver's license or an ID card behind again. This handy credit card holder starts to emit intermittent gentle vibrations as soon as a card is removed from any of the 5 available pockets. (vibration alert is used so no one else is disturbed) It will remind you every 10-12 seconds in the first half minute and then every 5 seconds after that. It does not stop reminding until you replace the card back in its pocket. 3v lithium battery is included. Comes with a stylish leatherette carrying case. Gift boxed. Makes a great gift!