Purse Guard Alarm Card Credit Card Reminder Anti Theft Just insert this slim card into your purse, if theft get purse out of your pocket, it will give Alarm. ( alarm when there is ray) *Prevent the Credit card, IC card, Aptitude card from loss after using. *When the card is taken out, the item can sound intermittently or vibration, without sound to remind the owner. The item will not stop until the card is put in position *Vibration remind design product with intermittent vibration without interruption to the third party. *Smart MCU controlled design, the remind frequency increase steadily to have the zero interruption for the user. *Card design, easy to carry in the purse or bag. It can store 5 credit cards at same time. *Colorful printing as required on the surface of the product. *You can insert five cards; *Battery: 3V, CR2032(included); *Vibration remind design product with intermittent vibration without interruption to the third party