Features of DB-RT Series: ¡·Remote controller can be used indoor. Each family member can choose a personalized code. Remote controller is user friendly for elder or yound children. Quickly operate to add and delete user codes at the keypad. Easily provide a user code for temporary access. Keypad buttons will glow in the dark for night visibility. Choose automatic locking or manual locking when door is closed. Program one remote control to open all deadbolts in different locations. Up to 10 active user codes and remote controllers. The remote control's operation range: 10m SPEC. 1. Material in exterior decorate with Solid Brass; interior with Brass Plate. 2. Surface of deadbolt finish with: Aged Bronze. 3. Open door with Remote control or Passward. 4. Standard equiped with 3 keys and 2 remote controllers. 1 set per box. 10 boxes per carton.