The smart key lock box combines the convenience of Bluetooth Smart app, fingerprint, password and access card unlocking to simplify access for your family and friends. The smart lockbox pairs seamlessly with Tuya Gateway (sold separately) for remote unlocking through the smart app, eliminating distance troubles and providing anytime, anywhere control. You do not need to be near the lock box to access it. The smart key box is made of zinc alloy and solid steel for durability and strength, ensuring protection against hammering and sawing. The portable key lock box comes with a removable shackle and can be mounted or hung on a door handle or fence, providing flexibility to install anywhere you like. Powered by four AAA alkaline batteries (not included), with emergency unlocking via a USB port. The key lock box measures 2.56 x 4.33 x 1.57 inches (6.9 x 11.5 cm), meeting multiple needs including daily use, home service, car service, and real estate business. Color: Black. Material: Metal. Package Contents: One box, two access control cards, five silicone hole plugs, one USB cable, and one removable shackle. Only the above package content is included; other products are not included.