✦ Bluetooth version 4.0, both iOS and Android system work, free APP
✦ Mobile phone APP control setting The manager operator can manage all the passwords and cards by APP (issue or cancel password and card)
Unlocking records can be checked by the APP
✦ Local setting The user also can issue or cancel the password and card in the lock by the setting button
✦ Password Anti-peep Technology You can add any digits before or/and after the right password, you still can unlock the door
✦ Password protection When you input wrong password 5 times, the lock will be automatically locked for 3 minutes.
Only the mechanical key can unlock in this case.
✦ Micro USB interface design for emergency power Mobile powerbank can be used as the backup power if battery dead.
✦ 4pcs AA battery life can last up to 18 months
✦ Emergency key 2pcs mechanical key for backup
✦ Low battery alert When battery voltage is lower than 4.8v, buzzer will make alert while each unlocking.
It can keep 50 times unlocking before batteries dead
