Check the listing for details. level lock the invisible smart lock 🔒 New Smart Lock . Bluetooth - Wi-Fi. Color: Nickel, Condition: New. Listed at 165.00 USD. Introducing the Lock & Lock Invisible Smart Door Lock, a top-of-the-line security solution for your home. This keyed entry smart door lock is made with high-quality stainless steel and nickel, ensuring durability and longevity. Its Bluetooth and Wi-Fi connectivity features make it easy to control and monitor your home's front entrance door, front door, or side entrance door/backdoor. The Lock & Lock Invisible Smart Door Lock is suitable for residential use and comes in a sleek nickel finish. Its smart home protocol is Bluetooth, making it compatible with a wide range of devices. This smart lock is perfect for those who want to enhance their home's security without compromising on style or convenience.