Features: 1. Unlocking: App+ Password+card 2. App management, password generated from the app and can be set to be time-limited 3. Cloud service data storage Users can be added or deleted remotely 4. Attendance records can be checked remotely History can be checked remotely 5. One app can manage many systems Easy to upgrade from normal door access system to bluetooth smart door access system Share e-keys via APP with different permission levels. eyepad protection: The keypad is locked for 5 minutes after 5 times of incorrect password input. Pseudo-password: Enter any digits, the lock will be unlocked if the last digits consist of the real password. Automatic locking: Automatic locking within 5 seconds after unlocking. Real-time monitoring: The administrator receives a push notification when a user unlocks with the app. Log in with another mobile: When you log in with another mobile, the previous one will be automatically logged out. Message notification: A message will be sent to the previous administrator when the lock is reset. type: Material: plastic color: As shown Package contents: 1 x Door Access Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement allowed error is +/- 1-3cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!