1,Functionality mode: single card, a card counter double-lock the function of choice. 2,Locks on its own credit card issuers,no Lock shell material: Stainless Steel+ABS shell material,Use hide handle.Working Status: sound and light work instructions, and low-voltage alarm tips,touch card flashing blue light.Color: Pearl Silver,Pearl Gold.Card system:Functionality mode: single card, a card counter ...