The Bluetooth glass door lock is specially designed for glass door. Mini compact and thick design perfectly fits glass door lock. There are two versions for options: fingerprint version and PIN code version. The glass door lock and the mobile is connected via Bluetooth. Mini lock design perfectly fits glass door lock. With fingerprint version, users can choose to unlock by fingerprint or app. With PIN coder version, users can choose to unlock by PIN code or app. All management can be operated on the app which is to be downloaded from android 4.0 and IOS 7.0 above system. It’s quite suitable for office attendance use. No matter where you are, you can remote unlock via app operation.