The Master Lock No. 5441EURD Bluetooth Select Access Smart Key Safe is the perfect solution to share access to your keys. Stop hiding your keys under the doormat or under a flowerpot. Open and control your electronic Select Access with your synchronized smartphone’s screen, with temporary or permanent codes. Invite 15 guests and share immediate access with the app. Fully monitor who visits and when through the App and notifications. It has a large capacity to hold key cards or traditional keys. Long life battery and battery is easily replaceable. Durable solid body has a coated surface to protect the hardware and door finish. Works with the free Master Lock Vault Home App, new version launched in January 2020, which is available on Android and iOS. We recommend downloading the App on your smartphone first, to check compatibility. The Limited 2 Year Warranty provides peace of mind from a brand you can trust. The 5441EURD is a great key safe to share keys and monitor access to your home. Also a great solution for AirBNB and home rental giving easy access to care takers and home workers. The 5441EURD can be mounted anywhere. The mounting kit is included in the package for ease of use. Features: Large key storage compartment holds multiple house keys or access cards Open and manage with your smartphone Use the FREE Master Lock Vault Home App for Android or IOS Can also be accessed by entering a traditional code on the keypad Schedule access now or in the future Use the App or web to track usage. Tamper alerts and low battery warnings Easy to replace battery (CR123A preinstalled) Includes mounting hardware for easy installation Specifications: Dimensions: H:12.7 x W:8.3 x D:5.9 cm Colour: Black Guarantee:Limited 2 Year Warranty Batteries Required: Yes Material: Zinc Model Number: 5441EURD