Master Sturdy & Safety: The key lock box is made of high strength zinc alloy and solid steel, which makes this lockboxes much durable and sturdy, protect from hammering, sawing or prying. You can securely hang this lock box on door knob, fence or anywhere you like, Or you can wall mount it . Wireless & Convenient: The Bluetooth key lock box features the universal Tu.ya Smart APP that allows owners to remotely grant access to others, and they ' need to download and use an app. Choose from PIN codes, Fingerprint or IC cards to grant permanent, duration, one-time or recurring access for convenience and security. Query access records, Send security alerts. Multi-way to access: Fingerprint to unlock, high-precision and fast identification, even wet can be quickly identified. 10-digit combination lock, provides more than 100 billion password combinations, making it impossible for thieves to enter. Comes with 2 IC cards for easy to unlock . Weatherproof & Durable: This portable lock box is rust-proof, corrosion-resistant and waterproof, great for indoor and outdoor use. Featuring SPCC metal material to offer protection from rain, snow, jamming or freezing, which makes works well under -4℉ to 158℉ temperature, no to hide a key. Designed for hassle-free sharing: The key lock box allows you or others to access the key at any time, which perfectly suitable for daily use, home , pet sitters, and real estate business. The Smart Keybox comes with more space for your convenience. Internal dimensions: 3.5 x 2.5 x 1.2 inch (H x W x D) Connectivity Bluetooth 4.0, WiFi (Gateway Bridge is required for both tuya and ttlock version) Lock panel sizes: 165 x 72mm Unlock mothod: App, fingerprint, code, card Batteries type: 4pcs AAA Alkaline batteries. Level of protection:IP65 Remote Access Yes, WiFi Gateway Bridge is required Type: Ttlock version Model Number:OS109FB color:Black Material:Zinc alloy Package Contents: 1 x Smart Key Lock Box 1 x English manual Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.