1Use the mobile app to unlock, and also support password and card unlocking to meet the needs of multiple use scenarios. 2Download APPK-Smart in for Google and Appication Store, you can easily open the door by connecting your phone to Bluetooth. 3All-in-one mode, controller mode, reader mode can be converted to each other. 4Made of high-strength zinc alloy, concealed button frame, full body waterproof IP66. 5Can work in a variety of environments from -40 to 60 . 6Including 2 management cards, one to add users, one to delete users, you can add up to 1000 users yourself.Condition: 100% Brand New Item Type: Access Control Color: Shown as Picture Case Material: Zinc Alloy User Capacity: 1000 Public User: 998 Management Card: 2 Working voltage: 12-28V AC/DC Standby current: Size: Approx. 55 x 21 x 134 mm/2.17 x 0.83 x 5.28in 1 x Bluetooth Access Control2 x Management Card1 x Screw Package (with Wrench and Resistor)1 x Instruction Manual