Youtube: https://youtu.be/Da9tk8EcbLI

Smart key box K12 which made of zinc alloy construction works durable and strong.

The streamline body outward appearance levels up the whole visual experience.

No matter for children care, house keeping, real estate agency management, family visit, Airbnb etc, K12 is your best assistant.

Save your time to find keys out and Improve your life quality.