Colours: Available in black or silver. Perfect: For keeping all your luggage locked and safe. Product: Get this Smart Fingerprint Padlock - 3 Types today! Ideal: For those who travel often. Options: Type C is a smart lock-low (small size) and type D is a smart lock-suggset (standard size). Power: Must be charged using a USB port. The red light will turn off when it is fully charged. Smart Fingerprint Padlock | Red | Living Social