This smart key lock box combines the convenience of Bluetooth Smart app, fingerprint, password, and access card unlocking to simplify access for you, your family, and friends. The smart lock box seamlessly pairs with the Tuya Gateway (sold separately) for remote unlocking via the smart app, eliminating distance limitations and giving you control anytime, anywhere. No need to be near the realtor's lockbox to access it anytime, anywhere. Crafted from high-quality zinc alloy and solid steel, this smart key box offers excellent durability and strength, ensuring protection against hammering and sawing. This portable key lock box comes with a removable shackle and can be mounted or hung on door handles/fences, providing flexibility to install wherever you need it. Powered by 4 AAA alkaline batteries (not included), with emergency opening via USB port. Key lock box capacity: 6.5 x 11.5 x 4 cm (2.56 x 4.33 x 1.57 inches), meeting various needs, including daily use, home services, car services, and real estate transactions. Color: Black Material: Metal Package Contents: 1 x Lock Box 2 x Access Control Cards 5 x Silicone Hole Plugs 1 x USB Cable 1 x Removable Shackle Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.