1APP unlock Bluetooth anti-theft lockThe phone APP electronic keys are saved in your phone. It cannot be replicated 2Electronic key long-range authority: Owner phone APP can send the electronic key to other users. Electronic key can be time limited, frozen, thawed and removed 3Administrator password to unlock: Equipped with touch key pad, user can set a permanent password, and you can use the permanent password to unlock 4Automatically locked: Open for more than 5 seconds, the lock will be automatically locked 5App SMS alerts: When reset administrator, APP will send SMS notification to former administrator phone Features: 1. APP unlock Bluetooth anti-theft lock: The phone APP electronic keys are saved in your phone. It cannotbe replicated. 2. Electronic key long-range authority: Owner phone APP can send the electronic key to other users. Electronic key can be time limited, frozen, thawed and removed. 3. Administrator password to unlock: Equipped with touch key pad, user can set a permanent password, and youcan use the permanent password to unlock. 4. Limited-time password (exclusive): APP can send a time limited password, authorize others to unlock byentering this temporary password. 5. Password protection: When you enter an incorrect password 5 times, the lock will be automaticallylocked for 5 minute until press correct password. 6. Password revoked (exclusive): Set the expired password, enter the password being used to lock all orfailure of a single password. 7. Automatically locked: Open for more than 5 seconds, the lock will be automatically locked. 8. Low voltage warning: When battery is less than 50 times to unlock, it will automatic send low batteryalarm. APP shows real-time power. 9. Real-time monitoring: General users unlocking information will send to administrator phone. 10. Cloud backup key: It is convenient to recover keys when re-install APP or change mobile phone. 11. Change phone log in: After you log on with new mobile phone, the former phone APP exit automatically,prevent the APP being illegally used. 12. Gesture password: APP start up needs to be verified, to prevent unauthorized use for others. 13. App SMS alerts: When reset administrator, APP will send SMS notification to former administratorphone. Specifications: Condition: 100% Material: Zinc Alloy, Brass Color: As Picture Shown Power Supply: 4 * AA Batteries (not included) Unlock Way: Mobile Bluetooth, Code, Mechanical Key Mobile Phone Version: For Android 4.3 above, for Apple Phone System Static Current: 50uA Working Current: 200mA Suitable Door Thickness: 30~60mm Size: As Picture Shown Package Weight: Approx. 1022g Package Included: 1 * Bluetooth Door Lock 1 * User Manual Other Accessories