This smart key lock box combines the convenience of Bluetooth Smart app, fingerprint, password, and access card unlocking for easy access for you, your family, and friends. Seamlessly pairs with the Tuya Gateway (sold separately) for remote unlocking via the smart app, eliminating distance limitations and providing control anytime, anywhere. No need to be near the realtor's lockbox to access it anytime, anywhere. Constructed from high-quality zinc alloy and solid steel for superior durability and strength, ensuring protection against hammering and sawing. This portable key lock box comes with a detachable shackle and can be mounted on a door handle/fence hanging, offering flexibility to install wherever you need. Powered by 4 AAA alkaline batteries (not included), emergency unlock via USB port. Compact key lock box capacity: 2.56 x 4.33 x 1.57 inches (6.9 x 11.5 cm), meeting various needs including daily use, home services, car services, and real estate businesses. Color: Black Material: Metal Package Contents: 1 x Key Lock Box 2 x Access Control Cards 5 x Silicone Hole Plugs 1 x USB Cable 1 x Detachable Shackle Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The allowable measurement error is +/- 1-3 cm.