We are dedicated to innovate locks. Ever imagine a smart padlock that needs no phone, no key, and no combination code? TAPP is a cutting-edge smart padlock using fingerprint access with encrypted smartphone-standard fingerprint sensor. A smart lock that can be unlocked with just a tap. The hassle surrounding compromised code and stolen keys can now be left outside the doors. TAPP allows you to share and revoke access with your friends and family through your smartphone. Also, TAPP's built-in phone charger will never leave you stranded with a dead phone. As to its size, TAPP has similar size to a regular padlock. However, it is lighter and more secure. The exterior is made of tempered martensitic stainless steel and coated with glassy paint to make TAPP not only strong, but look sleek in nature.