Master Lock 5441EUREC Bluetooth Key Lock Box 5441EUREC Bluetooth Key Lock Box • Ideal for use in business applications working with many locks and many users • Access gained by using your Smartphone • Backup access using numeric code on lock keypad • Share access with others - temporary or permanent • Schedule access now or in the future by choosing from suggested time range • Master Lock® Vault Enterprise IOS or Android app to control access is not within Bluetooth range lock keypad for easy backup • For security reasons, the lock box does not unlock if the synchronized phone • Use your smartphone to unlock wireless lock box or enter numerical code on without smartphone • Monitor activity, and receive tamper and low-battery alerts • Battery (CR123A) is easily replaced • Includes mounting hardware for easy installation • Large storage capacity for keys and access cards