4400EUREC Bluetooth Indoor Padlock 4400EUREC Bluetooth Indoor Padlock • Ideal for use in business applications working with many locks and many users • Use your Smartphone to open and manage your lock with the Master Lock® Vault Enterprise app • Master Lock® Vault Enterprise IOS or Android app to control access • Share access with others - temporary or permanent • Low battery notification and reminders on padlock and in app • Battery (CR2450) is easily replaced • Battery jump allows for temporary access if battery dies while locked