The smart key lock box offers convenient access via Bluetooth app, fingerprint, password, and access card, making it easy for family and friends to enter. This lock box works with the Tuya Gateway (sold separately) to enable remote unlocking through the smart app, allowing control from anywhere at any time. No need to be physically near the lock box to operate it. Constructed from high-quality zinc alloy and solid steel, the lock box provides strong durability and resistance to tampering, including protection against hammering and sawing. The portable key lock box includes a removable shackle and can be mounted or hung on doors, fences, or handles, offering flexible installation options. It is powered by 4 AAA alkaline batteries (not included) and features emergency USB unlocking capability. Dimensions: 2.56 x 4.33 x 1.57 inches (6.5 x 11 x 4 cm), suitable for various uses such as home access, service entries, vehicle access, and real estate applications. Color: Black Material: Metal Package Contents: 1 x Box 2 x Access control card 5 x Silicone hole plug 1 x USB cable 1 x Removable shackle Note: Light reflection and differences in display screens may cause slight variations between the color shown and the actual item. Measurement may vary by +/- 1-3 cm.